Dr. Jack Shephard is not able to save a survivor drowning in the sea and he becomes affected by the incident and the pressure of the community pointing him as a leader. Jack has visions of his father in the island and tries to chase him. Meanwhile, the finishing water supply is stolen, but Jack resolves his inner problems with his past and finds a source of water.<br /><br />This good episode discloses the past of Jack Shephard and the reasons why he was in flight 815. It calls the attention that all the characters disclosed to this moment have some sort of trouble in the past. Jack, for example, has an unresolved situation with his father. My vote is eight.<br /><br />Title (Brazil): "White Rabbit"