"Exodus, Part 1" is the twenty-third episode of Season 1 of Lost. Rousseau arrives at the camp with the warning that the Others are coming, and that everyone is in danger. To protect the group, Rousseau leads Jack and a team of survivors to the Black Rock, where there is dynamite. Jack hopes that with it they can blow open the Hatch and hide inside until the threat passes. Back at the camp, the survivors prepare the raft for launching. Flashbacks depict some of the survivors as they make their way to catch the doomed Oceanic Flight 815.