In the summer of 1780, on the tiny island of Merryapple, burly fisherman Robin Shipp lives a simple, quiet life in a bustling harbour town where most of the residents dislike him due to the actions of his father. With a hurricane approaching, he nonetheless convinces the villagers to take shelter in the one place big enough to hold them all—the ancient, labyrinthine tavern named the Moth & Moon.

While trapped with his neighbours during the raging storm, Robin inadvertently confronts more than the weather, and the results could change everything.