After discovering Latnok’s true purpose, Kyle enlists everyone to stop it at all costs, but keeping all his cover lies intact and protecting Jessi may endanger the operation.

Ted learns that not only did Lily plant another woman’s earring in his bed for Karen to find, she has meddled in some of his other relationships as well.

Malevolent mastermind Jonas Hodges emerges as Jack Bauer’s latest adversary as the long, terrifying day ticks deeper into the night. Jack yields results from a surprise meeting, and the fight to avert additional terror attacks continues.

Walt and Jesse find themselves in close quarters with an unhinged Tuco. Marie and Hank comfort Skyler, who is distraught over Walt’s disappearance. Hank pays a visit to Mrs. Pinkman on some not-so-official business.

Imprinted as a visually impaired woman, Echo must infiltrate a heavily guarded cult in order to rescue a woman held against her will.

With Galactica on the verge of falling apart, Admiral Adama readies the ship for what could be its final mission, as Baltar’s Six warns that humanity’s final chapter is near.

The parents of an abducted girl receive dozens of tips after offering a hefty reward for information. Cal and Gillian help them identify which tips are legitimate. Meanwhile, a publisher hires Ria and Eli to determine if a renowned peace activist is really who she claims to be after rumors surface, challenging her story.

Author Richard Castle joins NYC Detective Kate Beckett to help solve the case of a serial killer, who is reenacting murders from Castle’s novels. Castle becomes very intrigued with the murders and continues to shadow Beckett, much to her chagrin.

Marshall and Lily are less than thrilled when they hear that Ted’s college girlfriend (Laura Prepon) has moved to New York.

Kyle risks losing Cassidy’s trust when he begins a deception aimed at discovering Latnok’s true purpose, and Jessi, devastated by their discovery, has a hard time putting aside her emotions. Elsewhere, Josh plans a perfect farewell for Andy.