Kate Sullivan is a widowed single mother of three daughters who works two jobs while studying to be a nurse. Assigned to clean carpets on a yacht owned by spoiled, arrogant playboy Leonardo ‘Leo’ Montenegro, he makes rude remarks to her, firing her without pay when she refuses to bring him food. When Kate calls out his behavior, he pushes her off the boat with the expensive cleaning equipment. Meanwhile, in Mexico, Leo’s younger sisters Magdalena and Sofia are tending to their ailing father, who announces Leo as his successor to run their company. That night, Leo accidentally slips off the yacht and falls into the ocean unnoticed.