Michael Adamshick

When a member of the security detail for an upcoming Aid Summit is murdered before he can reveal the details of an assassination plot, Five-0 is brought in to investigate the murder and protect the target, a ruthless dictator.

McGarrett and Five-0 once again become entangled in the twisted mind games of serial killer Dr. Madison Gray (Elizabeth Röhm) when she stumbles into HPD covered in blood that matches Alicia Brown's (Claire Forlani), and claims amnesia.

Survivors wonder why Charlie and the pregnant Claire have been abducted – and by whom – and a search party ventures into the treacherous jungle to try to find and rescue the missing duo. Meanwhile, inner-demons about his father resurface for Jack, and Boone and Locke discover another island mystery.

When Hurley becomes obsessed with the French woman and heads into the jungle to find her, Jack, Sayid, and Charlie have no choice but to follow. Meanwhile, Locke asks Claire to help build a mysterious item.

Disturbing memories from Hurley’s past cause him to struggle with a task he’s assigned inside the hatch. Meanwhile Sawyer, Michael and Jin discover the identities of their captors, and Claire uncovers a shocking piece of information about the fate of the raft.