dr. jack shephard be not able to save a survivor drowning in the sea and he becomes affect by the incident and the pressure of the community point him a a leader . jack have vision of his father in the island and try to chase him . meanwhile and the finishing water supply be steal and but jack resolve his inner problem with his past and find a source of water . this good episode disclose the past of jack shephard and the reason why he be in flight 815. it call the attention that all the character disclose to this moment have some sort of trouble in the past . jack and for example and have an unresolved situation with his father . my vote be eight . title ( brazil ) represent white rabbit .