Jack and Kate bring an exhausted Michael back to camp where he has news about “The Others”. Meanwhile, Ana Lucia attempts to get the prisoner, Henry Gale to confess to being a spy for the Others, and he attempts to kill her. Also, Hurley plans a surprise date for Libby.
Hurley begins to think the island is affecting him in a very strange way, so Libby attempts to offer him support. Hurley also recalls his past in a mental hospital with his friend Dave. Meanwhile, the prisoner calling himself Henry Gale offers new information about the Hatch, which severely shakes Locke’s sense of purpose.
The mysterious French woman, Danielle Rousseau returns to lead Sayid to a mysterious captive who claims he crashed on the island. Meanwhile, Sawyer recruits Hurley to help him find another island animal that is harassing him: a loud tree frog.
When Charlie’s vividly surreal dreams lead him to believe Claire’s baby, Aaron, is in danger, Locke suspects Charlie may be using drugs again. More of Charlie’s background story shows his difficult relationship with his heroin addicted brother. Meanwhile, Sawyer encourages Hurley to act on his attraction to Libby.
Disturbing memories from Hurley’s past cause him to struggle with a task he’s assigned inside the hatch to watch over the food storage locker. Meanwhile Sawyer, Michael and Jin discover the identities of their captors whom are what’s left of a group of two dozen Flight 815 survivors from the tail end of the plane led by the tough minded Ana-Lucia Cortez who insists they walk to a more secure location. Claire uncovers a shocking piece of information about the fate of the raft when the message bottled washes ashore.
As Sawyer is trying to help Kate, Miles is assigned by Horace to a secret mission. He had to deliver a dead body to professor Chang. Hurley comes with him and learns from Miles that professor is supposed to be his father. Miles was told by her mother that his father was dead and left them alone.
Watch episode 14 of season 5 in streaming, the name of this episode is “the variable”:
After Desmond saves Claire from drowning, Charlie and Hurley suspect that he can see the future. So they try to get him drunk to get some answers out of him.
Ben, Locke, and Hurley go to The Orchid, but Keamy and his men beat them there. Jack and Kate go after the helicopter, and are later joined by Sawyer. Sayid comes back to the island with a rescue boat, and then goes after them too.
Locke, Ben, and Hurley continue their search for the cabin so that Locke can talk to Jacob. Back on the boat, Keamy prepares to take off again, this time for a all-out assault on the island.
Jack, Kate and Hurley wind up on the island in 1977, where they meet up with Sawyer and also join the Dharma Initiative. Meanwhile, Sun is stuck on the island in the present with Ben and the other passengers after the plane crash.