In flashbacks, Desmond is shipwrecked on the island and subsequently lives in the hatch with a man named Kelvin, whom he later accidentally kills. Meanwhile, Michael leads Jack, Kate, Sawyer and Hurley to the Others. Henry, the apparent leader of the Others, releases Hurley, takes Jack, Kate, and Sawyer as prisoners, and allows Michael and Walt to leave the island on a boat. Desmond returns and realizes that he caused the crash of Flight 815 when he entered the numbers into the computer too late. Locke stops entering the numbers and traps himself, Mr. Eko, Charlie and Desmond inside the hatch, which implodes. In the epilogue, scientists working for Penelope Widmore locate the island.