A rare storm surge sweeps across Canghai Bay, and Zhou Qingyu and her father are tragically swallowed by the enormous waves. When she wakes up again, she discovers that she has returned to three days before the disaster. Determined to change her fate, she sells off all their million-yuan worth of seafood at rock-bottom prices, purchases disaster-prevention supplies, and transforms an abandoned shipyard on a cliff into a shelter. Despite the villagers' confusion and skepticism, she persists in urging everyone to evacuate. As the storm arrives ahead of schedule and towering waves smash through the seawall, Zhou Qingyu and the villagers work together to protect their home amid the raging waves and welcome a new hope.