Evelyn, heiress of Carter Holdings, was betrayed by her husband, Daniel, and her best friend, Vanessa. Locked inside a shipping container, she was cast into the open sea. Daniel, resentful over Vanessa’s pregnancy and the way he had been underestimated, saw this as his chance to seize control of Carter Holdings. When Evelyn regained consciousness, the container was drifting in the water, and seawater was slowly seeping in. Using the last bit of battery on her phone and whatever tools she could find, she fought desperately to patch the leaks and survive. When her father, William, learned the truth, he immediately ordered a full-scale search and rescue operation. But that night, the container was violently tossed by the waves. Evelyn lost consciousness again. When she awoke, the water level had risen rapidly, and she found herself trapped in a life-or-death nightmare.