Haunted by how she could possibly have seen a little girl who went missing five decades ago, Meredith becomes increasingly fixated on the mystery of Shelly Gentry, and finds some startling evidence in Lee Kaa's shack. Meanwhile, the Battle for the Bay heats up at the council meeting.

Meredith fights her visions but the battle takes its toll. She tries to turn to Lee Kaa but the mad old man is fighting against the demolition of his shack. Then Kaitangata twitches again — is the island angry?

Lee Kaa saves Meredith from her dream, and Cardwell wins over Rufus. Kate and Nick decide to make a big bang, and Meredith learns the truth about the island and Lee Kaa.

Rufus is tempted by Cardwell to a richer life. Kate and Nick blow up Cardwell's billboard, and Meredith goes back into her dream and discovers the frightening truth.

Meredith confronts Cardwell but he ridicules her and the island refuses to demonstrate its power. Meredith is left furious. Her anger could be dangerous. Meredith is disturbed by the fresh batch of dead fish that have washed up on the shore.

Her family could be set to leave the area for good and her mentor is struck down. Meredith realises she must act to save her world from collapsing. There is only one solution — give the island what it wants.