The con is on! Locke’s belief in the Island is tested like never before. In this episode guide, we’ll break down the meaning behind his prophetic nightmare and the true purpose of Boone’s “sacrifice,” whilst exploring who or what is pulling the strings on these events: The Island or The Man in Black? We’ll also dig into Locke’s heart-breaking flashbacks with Anthony Cooper and explore how the episode sets up future arcs for Sawyer and Mr. Eko.