The island's mysteries continue to baffle with the discovery of handcuffs, a gun and an unusual animal for the tropics.

Jack and Hurley discover an alarming secret about Kate, as the marshal's life hangs in the balance.

Jack is near delirious from lack of sleep and struggles to overcome haunting events that brought him to the island.

Charlie confronts his past and struggles to break free from the bonds that hold him, while Jack is caught in a cave in.

Sayid's life is placed in grave danger after he stumbles upon the source of the mysterious French transmission.

Charlie and the pregnant Claire have been abducted and a search party ventures into the treacherous jungle to find them.

When Locke learns that Boone wants to tell their "secret" to Shannon, Shannon's life is placed in sudden peril.

A missing Claire returns with no recollection of what has happened since before their doomed Oceanic flight.

When the raft the survivors have been building mysteriously burns down, Michael is convinced that Jin is responsible.

Boone becomes concerned when Locke suffers physical problems while they try to find a way into the mysterious hatch.

After burying one of their own, tempers flare as the castaways' suspicions of each other grow.

The French woman Rousseau shocks the survivors by showing up with a dire warning about "the Others."