Episode Name: Every Man for Himself
Episode Overview: The Others prevent Sawyer and Kate from escaping, leaving Sawyer perplexed by the extent of the measures taken to keep them imprisoned. Jack is asked to use his medical training to save the life of one of the Others. At the beach, Desmond's strange behavior attracts attention. He begins to construct a mysterious device.
Episode Number: 4
Episode Season: 3
Episode First Aired: 2006-10-25