A violent storm sinks the ship carrying Keith and Skye. Keith ends up unconscious in the water; Skye makes it to a liferaft. Keith wakes alone on the beach of a deserted island and finds shelter in a nearby cave. Crossing the river the next day, he finds Skye asleep beside her undamaged raft—and discovers she is nearly blind without her glasses. During the search for them, Keith steps on and breaks them. Now dependent on him to navigate safely, Skye moves into the cave and the two begin building a survival routine with the island's limited resources.