Thirty-six weeks pregnant, Claire is lured onto a luxury yacht by her husband Gavin and best friend Sienna. They lock her in a flooding cabin, blow up the yacht, and flee by speedboat. Claire barely escapes onto a life raft and survives days at sea. She discovers the raft was removed, the beacon cut, and the search coordinates redirected by Gavin. After drifting to a deserted island, she gives birth alone in an abandoned lighthouse. Once rescued, Claire pretends to be weak while secretly gathering evidence. At the Founders Gala, she publicly exposes the murder plot. Gavin and Sienna are arrested. Claire reclaims her company and sails back into the sea with her daughter.
