Hurley is positive that something very strange is happening to him and the island itself is doing that to him. Libby tries to comfort him in this situation. Hurley's past comes back to him in flashes. He thinks about the days he spent in a mental institution with a friend named Dave. In the meantime, Henry Gale has some new but vital information to provide about the hatch. He mentions it to Locke and Locke is severely agitated.