Nick Tate

Jack and Hurley discover an alarming secret about Kate, as the marshal's life hangs in the balance. Meanwhile Kate, Charlie, Sawyer, Sayid, Boone, and Shannon ponder the island's mysteries they've uncovered and worry that telling the other survivors will cause panic. Locke's befriending of Walt disturbs Michael.

Holbrook's partner, Lt. Tanner, comes to town, intensifying their investigation into the Liars and their possible connection to Wilden's death. Emily panics when her parents come under undue scrutiny due to "A's" manipulations. Hanna bristles when Caleb tries to help her through this latest crisis, and tries to shift the focus of the police investigation. And Toby finds a new source of information into his mother's death, but it only leads to more questions. Meanwhile Aria has an uncomfortable encounter while out with Jake, and Spencer lays a trap for Melissa.

Still living at a motel, Emily is taken aback when Mrs. Dilaurentis offers to let her move into Ali's old room and is even more distraught when the other Liars insist she take Mrs. D up on her offer. Hanna explodes when it appears her mother's recent good fortune has taken a turn for the worse. And Ezra continues to reel from Maggie's big news when he's dealt an even more crushing blow regarding his son. Meanwhile, Aria makes an effort to get involved in Jake's interests and finds herself with an opportunity to follow up on a lead. And "A" continues to toy with Toby's emotions regarding his mother's death, and Spencer is along for the ride.

After being invited to accompany Captain Picard on a final mission before entering Starfleet Academy, Wesley finds himself struggling to keep the captain alive.

O'Brien is ordered to infiltrate the Orion Syndicate to expose a Federation informant. However, his involvement may lead to the death of his new friend.