Cal, Ria and Gillian are brought in to assess the truthfulness of two cops who shot a teenager. Meanwhile, the Lightman Group is being sued by the investors from the multimillion dollar scam Gillian and Eli worked on earlier.

Jane and the CBI set out to determine who is responsible for the Mob-style execution of a man in the Witness Protection Program.

The Fringe Division is on the case when severely mutilated bodies drained of spinal cord fluid begin to pile up. After their investigation leads them to a scientist (guest star Jefferson Mays) with possible ties to the Z.F.T. bioterrorist cell, they are shocked to discover the identity and motive of the killer. When the kills occur with increasing frequency, Olivia, Peter and Walter go to desperate lengths to stop them.

Castle and Beckett investigate the murder of a woman found drowned in motor oil in a motel bathtub. They seek the help of a true crime journalist who might have a connection to the victim.

Nathan faces off against Sylar to keep him from meeting the President. Sylar has his own plans for his new partner. Meanwhile, Hiro learns that there are repercussions to regaining his ability. Elsewhere, Matt is forced to go to extraordinary lengths to protect his future with his family.

Ted breaks one of Barney and Marshall’s relationship rules, texting a woman he recently met, so the pair play a joke on Ted by pretending to be the woman.

The nation remains vulnerable as Starkwood mastermind Jonas Hodges (guest star Jon Voight) remains at the epicenter of the mounting terrorist threat. Meanwhile, the FBI and the administration scramble to provide security and justice, and Jack Bauer questions a key suspect

When Badger finds himself in trouble with the law, Walt and Jesse seek the legal advice of a shady attorney, Saul Goodman. The DEA believe they may have finally caught up with the elusive ‘Heisenberg.’ Hank returns to Albuquerque, but his troubled mental state and demeanor cause Marie to worry.

When Adelle’s wealthy friend is murdered, Adelle imprints Echo with the woman’s memories and personality to solve the case. Ballard looks into Mellie’s past, and Topher secretly programs Sierra for an engagement.