Plugged In exists to shine a light on the world of popular entertainment while giving you and your family the essential tools you need to understand, navigate and impact the culture in which we live. Through reviews, articles and discussions, we want to spark intellectual thought, spiritual growth and a desire to follow the command of Colossians 2:8: "See to it that no one takes you captive through hollow and deceptive philosophy, which depends on human tradition and the basic principles of this world rather than on Christ."


Family uses Plugged In as a ‘significant compass’

"I am at a loss for words to adequately express how much it means to my husband and me to know that there is an organization like Focus that is rooting for us. Just today I was reading Psalm 37 and thinking about how your ministry provides ways to 'dwell in the land and enjoy safe pasture.' We have two teenagers and an 8-year-old in our household...Plugged In has become a significant compass for our family. All three of our kids are dedicated to their walk with Christ but they still encounter challenges. Thanks for all of your research and persistence in helping us navigate through stormy waters."

Plugged In helps college student stand-up for his belief

"Thanks for the great job you do in posting movie and television reviews online. I’m a college freshman and I recently had a confrontational disagreement with my English professor regarding an R-rated film. It is her favorite movie and she wanted to show it in class. I went to your Web site to research the film’s content. Although I had not seen the movie myself, I was able to make an educated argument against it based on the concerns you outlined. The prof said that she was impressed by my stand and decided to poll the whole class and give us a choice. We overwhelmingly voted to watch a G-rated movie instead! I’ve learned that I can trust your site and I will be using it a lot in the future.”

Plugged In brings ‘Sanity and Order’ to Non-believer

“Even though I don’t consider myself a Christian, I find your Plugged In Web site useful and thought-provoking. No one reviews movies like you do. Instead of being judgmental, you put entertainment ‘on trial.’ After presenting the evidence, you allow the jury of your readers to decide for themselves what they should do. In my opinion, you bring sanity and order to the wild world of modern day entertainment. Keep up the good work!”

Mom thinks Plugged In is the ‘BEST Christian media review site’

"Our family doesn't go to the movies until we go online and check out your assessment of a given film. I think this is the BEST Christian media review website that I've found, and I recommend it to my family and friends. Keep up the good work!"


Our hope is that whether you're a parent, youth leader or teen, the information and tools at Plugged In will help you and your family make appropriate media decisions. We are privileged to do the work we do, and are continually thankful for the generosity and support from you, our loyal readers, listeners and friends.

We hope this review was both interesting and useful. Please share it with family and friends who would benefit from it as well.

Book Review

A Darkling Plain by Philip Reeve has been reviewed by Focus on the Family’s marriage and parenting magazine. It is the fourth book in the “Mortal Engines” series.

Positive Elements

Spiritual Content

Sexual Content

Violent Content

Crude or Profane Language

Drug and Alcohol Content

Other Negative Elements


Pro-social Content

Objectionable Content

Summary Advisory

Plot Summary

Six months after escaping the Green Storm’s attack on the floating city of Brighton and parting ways with Wren Natsworthy, Theo Ngoni has returned to his home country of Zagwa. He hears news of the wider world. After the supposed demise of the undead cyborg Stalker Fang, General Naga leads the Anti-Tractionist extremist group Green Storm and has surprisingly called a truce with all the Traction Cities, promising an end to the war that has been wrecking the planet for 15 years. General Naga sends his wife, Lady Naga, formerly known as Doctor Zero, to engage in peace talks with the Anti-Traction nation of Zagwa, which had previously rejected the Green Storm’s extremist ideology of total war against the Traction Cities.

Theo is flying a one-person kite when he sees an air fleet of Super-Gnats, fighter-bomber ships from the Traction Cities of the Traktionstadtsgesellschaft, approaching Zagwa. He deduces that they’re coming to violate the truce and bomb Zagwa. Theo abandons his kite and invades a Super-Gnat, sending a radio message to Zagwa that they’re being attacked.

Theo is wounded while saving the city from attack, and Lady Naga operates on him to save his life. He learns from her that the attack was actually perpetrated by the Green Storm, some of whom hate Lady Naga for influencing General Naga to pursue peace.

Wren and her father, Tom, are flying their airship, the Jenny Haniver, through the Bird Roads. Tom’s health is failing because of an old bullet wound near his heart. He is also sorrowful because his wife, Hester, ran away and abandoned him and Wren after the battle of Brighton. In Peripatetiapolis, Tom sees a woman he knew from his youth in London, which lets him know that London wasn’t truly destroyed. He resolves to follow his curiosity and look for more information about London.

In Cairo, the little boy Fishcake is living with Stalker Fang, whom he repaired after she was nearly destroyed in Brighton. The Stalker has a split personality: Anna, who is kind and motherly to Fishcake, and Stalker Fang, who wants to regain power and destroy all Traction Cities. They steal a limpet ship from Brighton and reach Shan Guo, stopping to rest at a hermitage on the inactive volcano of Zhan Shan.

At the hermitage, Anna is surprised to find her old mentee, Sathya, not remembering that the Stalker Fang cut off Sathya’s arm and left her for dead. Fishcake hopes the presence of Anna’s old friend will make the Anna side win out permanently over the murderous Stalker Fang side.

Theo goes on an airship mission to guard Lady Naga and deliver her safely to General Naga in Tienjing, but their ship is sabotaged by a spy. After the ship’s crash, a slaver kidnaps Lady Naga. Hester and Stalker Shrike, who have been traveling together, rescue Theo from the engine pits of Cutler's Gap. Shrike was rebuilt by Lady Naga, who programmed him to be incapable of killing anyone, but Hester has no such limits and has been making her living as an assassin.

Tom and Wren go to Murnau and meet Professor Pennyroyal, the man who shot Tom 20 years ago but who has since become a sort of friend to the Natsworthys. When Tom tries to get information about the wreck of old London, Pennyroyal says London is haunted; no one goes there anymore. Wolf Kobold, son of Murnau’s mayor, is interested in the Natsworthys. They join him aboard his burrowing suburb of Harrowbarrow on a mission to explore the ruins of London.

Fishcake and Stalker Fang leave Sathya’s peaceful hermitage and travel to Batmunkh Gompa to meet Stalker Fang’s maker, Dr. Popjoy. Anna wants Dr. Popjoy to permanently dampen her Fang side, but Stalker Fang takes over their shared body, kills Dr. Popjoy and leaves Batmunkh Gompa with Fishcake in Dr. Popjoy’s air-yacht. They go to Anna’s old home of Erdene Tezh so that she can contact ODIN, an ancient orbital weapon of mass destruction.

In the wreck of London, Tom, Wren and Wolf are taken prisoner by the Londoners, whose mayor is Chudleigh Pomeroy, Tom’s former boss. London is building the small hovering city of New London, which they hope will float on magnetic currents and carry them to a better life. Wolf runs away to find his nearby suburb of Harrowbarrow so he can attack New London and use its technology to help his own suburb.

Hester, Shrike and Theo come to Airhaven in the airship Shadow Aspect and try to buy Lady Naga from a slaver named Varley. They don’t have enough money, but when they encounter a disguised Pennyroyal walking in Airhaven, Hester robs him and returns to Varley. She gets into a fight with Varley, but just as Varley is about to kill Hester, his own wife shoots him first.

Wolf’s father, a good mayor named von Kobold, arrives to help Hester, who is bleeding from a head wound, and Lady Naga. Pennyroyal and some men from Manchester face off against von Kobold in an attempt to kidnap Lady Naga, but instead Shrike takes Lady Naga and Hester back to the Shadow Aspect where Theo flies them to safety.

Lady Naga treats Hester’s wound and makes contact with the Green Storm, who gives them coordinates to an airfield where they can land. Shrike discovers Pennyroyal clinging to the Shadow Aspect’s tailfin and brings him aboard. Pennyroyal gives Theo a letter from Wren, which lets him know she has gone to London.

The Traktionstadtsgesellschaft mobilize to attack the border line of the Green Storm’s territory. General Naga, saddened by his wife’s supposed death and weakened by poison from a spy loyal to Stalker Fang, doesn’t respond to mobilize the Green Storm troops in return. The Traktionstadtsgesellschaft attack the airfield where Lady Naga is, but she, Hester and Shrike escape to the Green Storm’s Forward Command where Hester remains unconscious for a few days, recovering from her wound.

When Hester wakes up and finds that Theo was left behind on the airfield during the attack, she assumes he is dead and feels heartbroken. In the newly restarted war, the Traktionstadtsgesellschaft are winning handily against the Green Storm until several Traction Cities are destroyed by ODIN, which fires on them from orbit at Stalker Fang’s command. ODIN also destroys Tienjing, the Anti-Tractionist headquarters, but General Naga survives.

Theo travels to London on foot to find Wren. When they are reunited, he tells her that her mom, Hester, is traveling with Shrike and that Hester is a brave, tough person. Wren doesn’t know how to feel about her mother since she ran away after the battle of Brighton, but she is glad to see Theo again and they begin a romantic relationship.

Seeing ODIN firing upon distant cities and hoping to protect Wren, Tom decides to fly the Jenny Haniver to Batmunkh Gompa to talk with General Naga and convince him not to attack New London. General Naga does not believe that Tom is really from London, and instead believes he’s a Tractionist agent. Wren and Theo have to escape from London when they are accused of being Green Storm members.

Hester, Shrike, Pennyroyal and Lady Naga reach Batmunkh Gompa, where they hear that Tienjing and several Traction Cities have been destroyed. Shrike guesses that Stalker Fang is firing on both armies in order to sow confusion. General Naga is not happy to see Lady Naga and blames her for Tienjing’s destruction because he thinks it is London attacking the Anti-Tractionists, not Stalker Fang. Hester reunites with Tom, and they both watch as ODIN fires on the volcano of Zhan Shan, causing it to erupt.

Wren sees the burrowing suburb of Harrowbarrow returning to attack London, so she intentionally lets herself get captured by Harrowbarrow. She feigns friendliness toward Wolf and leads his city into a damaging electricity field, though the suburb continues its advance toward London. Theo joins her. General Naga flies to London, but discovers that the Londoners are not controlling ODIN’s power. Naga tells the London engineers to start flying their new city so that they can escape the oncoming Harrowbarrow.

Tom, Hester and Shrike take the Jenny Haniver to Erdene Tezh with Pennyroyal as a stowaway, but the Jenny Haniver crashes. When they approach Anna’s old house, Fishcake attacks Hester, because he once vowed to kill her. Stalker Fang doesn’t allow him to continue attacking them because she has fond memories of Hester and Tom.

Tom faints from his heart condition, and Stalker Fang lets him rest because she knows he’s dying. She explains to him that she means to use ODIN to ignite volcanoes all over the earth, destroying all life so that the earth can heal itself from the plague of human cities, both Traction and Anti-Traction.

As Harrowbarrow pursues the fast-floating New London, Wren and Theo fight Wolf. An accident causes Wolf to impale himself on Wren’s weapon, killing him. General Naga rescues Wren and Theo from Harrowbarrow and deposits them on New London. General Naga then flies his airship solo and kamikaze-bombs Harrowbarrow so that New London can escape.

At Erdene Tezh, Tom begs Stalker Fang to destroy ODIN so that Wren can live. Stalker Fang enters a command into ODIN’s transmitter, and then Pennyroyal arrives and kills Stalker Fang with a lightning gun, destroying the machinery of ODIN’s transmitter in the process.

In the night sky, Tom and Hester see an explosion of light, which they know is ODIN blowing itself up from Stalker Fang’s command. Tom collapses in pain. Pennyroyal goes to bring a ship to rescue Tom and Hester, but Fishcake threatens him with a knife and forces him to abandon them, just as they once abandoned him.

In Batmunkh Gompa, the remaining Green Storm troops see ODIN disintegrating and promote Lady Naga as the new leader of the Anti-Traction League, since she is wise and peaceful and the whole world is in turmoil. In the wake of ODIN’s destruction, many Traction Cities become static and work in cooperation with the Anti-Tractionists.

Fishcake walks back to the hermitage at Zhan Shan and grows up in Sathya’s house, eventually becoming a successful adult and having children of his own. Wren and Theo go to Zagwa, where his family welcomes Wren and their plans to marry. Wren and Theo purchase an airship they name the Jenny Haniver II, and they intend to become air-traders, shuttling back and forth between New London and the many cities that are safe to visit during the new era of peace.

After Stalker Fang’s death, Shrike runs to Erdene Tezh to rescue Hester and Tom, but discovers that Tom has died of heart failure and Hester has committed suicide by stabbing herself in the heart. Stalker lays their bodies under an oak sapling and sits unmoving as they decompose over the years.

In a dreamlike state, Shrike waits for hundreds of years until he sees children. He wakes himself up and discovers that the children have been decking him with garlands of flowers. The children lead him down to their village, and the peaceful happy villagers no longer remember an era when there were Traction Cities. People ask what his function is and he tells them he is a Remembering Machine. The townspeople ask him to tell a story, so he begins to narrate the story of Tom and Hester, beginning with the opening paragraph of Mortal Engines, the first book in the series.

Christian Beliefs

Wren sends Theo a Christmas card because, although he isn’t very religious, he lives in the Christian state of Zagwa. Theo tells Wren he was welcomed home to his family like the prodigal son returning, but she doesn’t understand his reference to Scripture.

Lady Naga earns respect in Zagwa for going to an old cathedral and praying with the bishop. She wears a crucifix around her neck. She prays to God, not expecting a direct answer, but out of reverence for His help. In the past, when she prayed for strength, God gave her the comfort and courage to do difficult things, such as overthrowing Stalker Fang. She thanks God for blessings in her life and prays for His protection over those she cares about. Her wedding ceremony was performed by a Christian vicar, as a testament to her new faith.

When Hester thinks Theo is dead, she tells Lady Naga that she should have prayed to her God to save him. Lady Naga replies that God doesn’t reach down into the world to affect things or violate a human’s free will when they make a decision. She says that God understands human pain and sees everything Hester is going through. She assures Hester that Theo is not in the Sunless Country, but in the presence of God where he is safe and comforted.

Lady Naga is not afraid of death because she believes she’ll go to heaven.

Other Belief Systems

Tom believes that when he dies, he will go to the Sunless Country. Aviators believe in the gods of the skies and casually refer to them in conversation. Stalker Fang says Zhan Shan is a holy mountain. Sathya tends the shrines of Zhan Shan and prays to the sky and mountain gods to help the villagers. Statues of patron gods and goddesses appear in many cities.

Authority Roles

Tom is a good father to Wren, teaching her how to fly the Jenny Haniver and cultivating her skills as an aviatrix. He also genuinely enjoys his daughter’s company and respects her opinions. Theo’s parents love him and welcome him home even after he ran away to join a military movement they didn’t support. They encourage him to follow his desire for adventure. Wolf’s father loves him, although they have diametrically opposed viewpoints on war and on morality in general.


Christ's name is used in vain once. Objectionable words include d--n, b--ch and arse.

Theo is stabbed in a knife fight with an enemy pilot and bleeds profusely. Cynthia begins to strangle Doctor Zero with a silk belt. She also kills a man by scratching his face with a poisoned hairpin. Stalker Fang kills a man by snapping his neck and kills others with her claws.

Hester is an assassin. She shoots and stabs dozens of people. Napster Varley punches his wife, giving her a black eye. General Naga hits his wife with his mechanical arm, making her bleed. An impact knocks Wolf onto a pipe that Wren is holding, impaling and killing him.


Theo recalls kissing Wren when they parted ways, and his mind often goes back to that moment. When they are reunited, Wren kisses Theo.

It’s mentioned that Sathya was in love with Anna Fang, though Anna saw the relationship in more friendly terms. Hester tells Tom that her father was not David Shaw but Thaddeus Valentine, as Valentine and her mother were lovers long ago. Tom and Hester kiss.

Discussion Topics

Get free discussion questions for this book and others, at FocusOnTheFamily.com/discuss-books.

Additional Comments/Notes

You can request a review of a title you can't find at reviewrequests@family.org.

Book reviews cover the content, themes and worldviews of fiction books, not their literary merit, and equip parents to decide whether a book is appropriate for their children. The inclusion of a book's review does not constitute an endorsement by Focus on the Family.

Episode Reviews



Readability Age Range

11 and up


Philip Reeve






Record Label



Scholastic Inc.


On Video

Year Published



Guardian Children's Fiction Prize, 2006. Los Angeles Times Book Prize for Young Adult Fiction, 2007


We hope this review was both interesting and useful. Please share it with family and friends who would benefit from it as well.

Get weekly e-news, Culture Clips & more!