Billy Ray Gallion

Jake and Holt remain in Florida, adjusting to their new lives under the Witness Protection Program, while Jimmy "The Butcher" Figgis is still on the loose. Their one human link to their regular lives is U.S. Marshall Karen Haas (guest star Maya Rudolph, "Maya and Marty"), but their anonymity may be in danger when a video of them goes viral.

After Hayley does a favor for an old friend, she finds herself implicated in a killing and cyber-terror attack. Now, Beckett and Castle must rush to solve the case and clear Hayley's name.

Survivors are jolted awake in the middle of the night when wild island beasts invade the beach encampment. Kate and Michael join the mysterious Locke on a hunt for food as a shocking secret about Locke is revealed. Meanwhile, some survivors are horrified by Jack's plan for the dead bodies still scattered among the wreckage, and Jack sees someone in the jungle who might not have been on the plane.

At his mentor's request, McGarrett persuades Max to redo the autopsy on a SEAL, thought to have committed suicide, in order to investigate his murder. Meanwhile, Chin Ho worries about Kono hanging out with a group of dirty ex-cops.

The team's investigation into a volleyball coach's murder reveals more bad news about Kono; Chin Ho reconnects with his ex-fiance.