Jack and Henderson wage an assault on the submarine as Bierko prepares to launch an attack against L.A. Chloe brings in someone from her past to aid her. Martha and Aaron enlist Mike’s help in their plans to expose Logan.
CTU discovers where Philip is hiding and Daniels orders an air strike in a desperate move to appease the Russians. Jack and Bill go after Josh alone before the bombers find their target.Lennox persuades Daniels to grant leniency for Bill and Karen. In the wake of the close call, Daniels begins to question his choices as acting president.Chloe gives Morris some surprising news that alters their relationship, while Marilyn is reunited with Josh at CTU.
Bierko escapes from the transport taking him to Division and uses his last canister of nerve gas for a surprise strike. Jack is forced to work with Henderson to find Bierko, but Henderson wants something in return. Logan takes drastic steps to deal with Aaron when he won’t go along with the cover-up.
Doyle takes Josh to meet Phillip in the hopes of retrieving the circuit board, but his conscience bothers him over the exchange.Karen puts her career on the line when she uses Bill to help break Jack from custody. Jack and Bill track Phillip, but not before he pulls a fast move that reaps serious injury to Doyle.Nadia has a conversation with Milo’s brother, while Chloe suffers from a mysterious medical problem that strikes her at the wrong moment.
Jack searches for a safe place to land the plane when Logan gives orders to shoot it down. Hayes readies Bierko for a transfer to a secure facility, while Audrey receives some good news about her father. Logan becomes desperate as his plans start to unravel, but an unexpected ally at CTU turns the tables in his favor.
Jack runs a desperate tactic to free the CTU hostages from their captors. He manages to intercept Cheng, who plans to deliver Josh to his grandfather in exchange for the circuit board. Jack is forced to allow Cheng to escape in order to save Josh’s life.Lennox continues to monitor Lisa as she plants evidence for Mark to deliver to the Russians. The situation takes a nasty turn when all does not go according to plan. Meanwhile, Daniels tries to run a bluff on the Russian president, but finds he’s playing a bad hand.Nadia finds herself facing a hostile investigation over the security breach, while a decision from Daniels pits Doyle against Jack.
After stowing away aboard the flight containing Henderson’s contact and the incriminating recording, Jack finds himself having to deal with a pilot who refuses to cooperate.
Martha begins to break down, and Mike becomes suspicious of what she is hiding from him, while Logan tries to calm his financial backers.
Jack is held in custody at CTU, while Cheng prepares to launch a surprise attack.Lennox uses Lisa as a plant to send a false message to the Russians in hopes of defusing a tense situation.Morris’ decision to end his relationship with Chloe begins taking its toll on her as they struggle to maintain professionalism, and Josh shows signs of guilt over the role his father played in the day’s terrorist attacks.
Jack captures Henderson and attempts to force him to hand over the recording, but Henderson targets Heller to buy himself more time. Logan confesses his involvement in Palmer’s assassination to a distraught Martha. Miles traces Chloe to Buchanan’s home, but Hayes finds herself questioning Logan’s motives as CTU closes in.
Nadia approves an interrogation technique that might prove fatal to Audrey. Doyle covertly aids Jack in the hopes that he can save her from further mental trauma.Daniels discovers that he may have a leak in his administration when he is confronted by the angry Russian president.Chloe and Morris’s relationship hits the rocks, while Heller delivers Jack a stern warning.
