Terminator: The Sarah Connor Chronicles

In the second season premiere, rocked by the Jeep explosion on his 16th birthday, John is forced to confront the reality of his destiny alone.

Sarah and Cameron explore a nuclear power plant. John withdraws from school but opens up to a new friend. Weaver adds a piece to her project. BUSY PHILLIPS guest stars.

Sarah and Derek must outwit Cromartie after Charley's (recurring guest star DEAN WINTERS) wife is kidnapped. John finds himself caught between Cameron and Riley.

A software glitch causes Cameron to forget who she is. A social worker uncovers some of her distant memories. Meanwhile, Catherine Weaver meets with Agent Ellison.

John and Derek infiltrate a military academy to protect an integral member of the future resistance. Meanwhile, Weaver's first assignment for Ellison takes an interesting turn.

Sarah, John and Cameron track down another name on their list and wonder why a T-1001 would need a doctor. Meanwhile, a woman from Derek's past surprises him in the present.

The Connors are on alert after their house is robbed. One Terminator terrorizes Ellison, while another gets dangerously close to John. Derek and Jesse continue to get reacquainted.

John and Riley's impromptu trip to Mexico results in deadly consequences. Meanwhile, Sarah and Ellison finally come face to face.

Sarah's nightmares creep into her real life, but what do they mean? Derek and Jesse (recurring guest star STEPHANIE JACOBSEN) investigate a possible Skynet conspirator.

Sarah's obsession with the three dots leads her to a company she thinks may have the Turk. Jesse's (STEPHANIE JACOBSEN) plans complicate things. And Weaver makes an introduction.

Cameron never sleeps, so what does she do at night? Her surprising, secret life is revealed. Plus, history is forever changed when a Terminator is sent back to the wrong time.

Sarah and Cameron try to save a family on the list with a connection to Derek in the future. Meanwhile, Jesse's (STEPHANIE JACOBSEN) life hangs in the balance.

Sarah's obsession with the three dots intensifies when she tracks down a blogger with an intimate knowledge of the symbol. Riley gets closer to John and faces off with Cameron.

An injured Sarah is guided by the image of John's father, Kyle Reese (JONATHAN JACKSON), and Weaver makes a move that has deadly consequences. STEPHANIE JACOBSEN appears as Jesse.

Sarah, John, Cameron and Derek investigate the town connected to the destroyed factory, while Weaver sends her own man into town in search of a potential survivor.

Haunted by nightmares of the man she killed in the factory, Sarah checks in to a sleep clinic. She soon suspects Skynet may be using the facility for brain mapping.

Cameron's defect resurfaces, resulting in regrettable consequences for everyone. Plus, Riley fears Cameron has discovered her secret.

Jesse (recurring guest star STEPHANIE JACOBSEN) flashes back to a life-altering mission aboard her submarine, the Jimmy Carter. Sarah and John make plans to leave.

Jesse's (STEPHANIE JACOBSEN) submarine mission in the future takes a fatal turn that has unforeseen effects on John, Sarah and Derek in the present. And Sarah deals with Cameron.

Sarah stashes John in a safe house. Cameron and Derek struggle to work together after she reveals a big secret. John Henry (GARREY DILLAHUNT) becomes compromised.

The Connors close in on Skynet and battle lines are drawn. Meanwhile, Weaver learns Ellison's secrets.

In the second season finale, the Connors come face to face with Weaver in a confrontation that shakes John to the core and changes his reality forever. Nothing will be the same.