College student Fu Ye and his childhood sweetheart, campus beauty Chu Mengmeng, set off on a luxury cruise organized by their school. While a rich second-generation classmate, Hao Ran, is confessing to Chu Mengmeng, a tsunami strikes, and the cruise ship is pulled into a whirlpool. When they wake up, they discover they have obtained a deserted-island survival system. They find themselves on an unknown island with no other classmates besides Chu Mengmeng. Every sign suggests they are far from their homeland's waters. As they struggle to survive on the island, they gradually realize they seem to have arrived somewhere extraordinary—a place where everything feels wrong.