Lost: ?

Eko, following dream visions, takes Locke to go into the jungle in search of a secret location that Eko believes holds the answers to the mysteries of the island. They find another bunker that reveals more about the hatch, further shaking Locke's faith in the button and Island but strengthening Eko's resolve. Kate finds out where the guns are when Jack sends her with Sawyer to get the heroin he stashed to help treat Libby. Michael is nervous about Libby telling the truth about who shot her but she passes away.