Annie Porter, the woman who was held on a city bus with a bomb attached to it that will go off if it slows down. She dated the police officer who saved her but broke up with him because he was constantly putting his life in danger. She would then date a man named Alex Shaw who is also a police officer but told her that he does a mundane assignment. But she eventually learns that he works for the same unit that the other man worked for and is also addicted to danger. She wants to break up with but he surprises her with a cruise. She agrees to go and he's planning to propose to her. But when he notices another passenger act peculiar, he can't help but attempt to find out what's up with him. He's John Geiger, a disgruntled computer genius who designed the ship's systems, and was fired. He then takes over the ship's systems and sets it on a course that will send her into a tanker. Alex must now foil Geiger's plans and bring everyone back safely to shore, but can he outwit a man who can control the entire ship with his keyboard?