Plot
A Terminator attacks Weaver's house, but the Connors arrive to rescue Savannah, since John found a photo of her on the body of one of the men who attacked the lighthouse. They get away with Savannah, but Derek is killed by the Terminator. Savannah explains to John that she has a friend with a cord in his head who lives in the basement at her mom's office, and the Connors try to use her as leverage to get a meeting with Weaver. Meanwhile, John Henry has to deal with a new level of moral ambiguity, as both Weaver and Ellison try to persuade him to keep secrets from the other.
Tropes
- Actor Allusion: Played with, when Savannah tells Weaver she "can't sing." Weaver is played by Shirley Manson, lead singer of rock band Garbage.
- Anyone Can Die: Derek comes face to face with a Terminator and gets shot dead.
- Big Fancy House: The Weaver home is a giant glass and steel monstrosity on a hilltop.
- Blatant Lies: John Henry calls out Ellison's lies, and Ellison tries to get him to lie to Weaver. John Henry can't understand why.
- Cain and Abel: John Henry asks Weaver if he's Cain or Abel. Weaver suggests that he might be God.
- Call-Back: Cameron remembers Ellison lying to her about the fate of Cromartie's corpse, and regrets not killing him.
- Continuity Nod: In the first season, Sarah told Derek she would take him to Kyle's resting place, with the grass and trees. John also reminds Savannah how they met.
- Creepy Child: While Savannah is sweet and adorable, the look of horror on John's face as she describes the "man in the basement" turns her into this.
- Curb-Stomp Battle: Derek comes face to face with an armed Terminator. It instantly shoots him in the head and moves on without breaking stride.
- The Glomp: Savannah glomps Weaver when Ellison reunites them. Their relationship has come some way from when Savannah was wetting herself in terror of her at the beginning of the season.
- The Kindnapper: Sarah and John kidnap Savannah to protect her from Terminators. It becomes more cynical when Savannah tells John about her secret friend.
- Pædo Hunt: When Savannah's teacher catches her web-chatting with John Henry in class, and Savannah can't explain who he is, the teacher thinks that he's an online pedophile.
- Parental Favoritism: Both Ellison and John Henry upbraid Weaver about apparently caring more for John Henry's safety than Savannah's. She insists that she does care for Savannah, but says that John Henry's survival is important for the future of the world.
- Police Are Useless: At the Weaver house, showing up late and getting killed for their trouble.
- Red Shirt: Savannah's nanny Debbie, who gets shot by the Terminator after answering the door to it.
- Sociopathic Hero: Sarah's lack of emotion and Weaver's decidedly un-parental response to Savannah's disappearance appear to be this.
- Softer and Slower Cover: "Donald Where's Your Trousers". The bleak a capella treatment of it made some US fans assume it was an archaic folk song.
- Soundtrack Dissonance: John Henry and Savannah's rendition of Scottish folk-comedy song "Donald Where's Your Trousers" over a montage of Sarah getting arrested and Derek's ashes being interred in a pauper's grave. Somehow it makes the scenes even more dramatic and sad.
- Voice with an Internet Connection: John Henry tries to guide Savannah to hide and escape from the Terminator at her house, but eventually fails because she didn't take her phone with her and the hands-free headset she was using got out of range.
