 Eko is completely disturbed, haunted by his past in Nigeria, and leaves the tent looking for his brother Yemi in the woods. Locke organizes an expedition with Sayid, Desmond, Paulo and Nikki to chase Eko and to go the Pearl hatch, expecting also to find a computer and locate Jack, Kate and Sawyer. Meanwhile, Jack discloses that Ben Linus has a tumor in his spine, finding the real intention of his abduction. Juliet plots and proposes a plan to Jack to eliminate Ben. Eko is attacked and killed by a dark fog.