Adam Leadbeater

Van Pelt's actions are called into question and her position within the CBI is jeopardized when a witness is murdered while she is assigned to his protection.

A conspiracy theorist helps Five-0 when a missing artifact is the key to solving a double murder. Jorge Garcia guest stars.

When Locke learns that Boone wants to tell their "secret" to Shannon, Shannon's life is placed in sudden peril and the shocking truth about her past with Boone is revealed. Meanwhile, Kate is puzzled by Sun's mysterious behavior. A hungry Hurley must repay a debt to Jin.

The team is in shambles as Jonas runs from a deadly assassin, Bob may be secretly reporting to another agency and Ryan tries valiantly to put them back together, on part one of the two-part season premiere.