Christian Bowman

The discovery of a transceiver among the plane's wreckage and the thought that rescue could be imminent temporarily raises the castaways' spirits. The island's mysteries continue to baffle with the discovery of handcuffs, a gun, and an animal that shouldn't be able to survive in a tropical climate.

Charlie begins a painful journey of withdrawal from drugs, surprisingly aided by Locke, whose true motive for helping Charlie is a mystery. Meanwhile, survivors struggle to find and free Jack when he's buried alive in a cave collapse. Someone might be secretly thwarting Sayid, Kate, and Boone when they enact a plan to find the source of the French transmission.

After the missing Claire returns with no recollection of what has happened since before the doomed flight of Oceanic 815, Jack and Locke formulate a plan of defense against her kidnapper. The mysterious Ethan threatens to kill off the other survivors unless Claire is returned to him.

The French woman – Rousseau – shocks the survivors by showing up with a dire warning about "the others." Meanwhile, Michael and Jin ready the raft for sailing.

Heavy rains force Michael to move up the escape timetable and break out of Sona that evening. Another inmate joins in on the escape, and T-Bag and Lechero form an alliance as Bellick hopes to form one with Mahone. Lincoln and Sucre help bring the lights down on Sona.