 Jack, Locke and Kate learn more secrets about the hatch when Desmond tells them why he is there and to punch in the number code every 108 minutes or a reaction will occur. More of Locke s background story shows a young John Locke becoming acquainted with Helen whom he meets at an AA meeting. Meanwhile, after being beaten and taken captive, Sawyer, Michael and Jin wonder if their captors are fellow survivors or the dreaded "Others."