An heiress brings some rare jewels from her family's collection to display on the ship. Donald must guard the gems after the family's security chief takes ill. A jewel thief plans a heist and asks his son to distract the heiress. Problems arise when he falls in love with her. John is disgusted when Nicole fawns over a handsome astronaut/marathon runner/former pro baseball player who cannot stop talking about himself. Danny falls head over heels for an 18-year-old passenger, then proposes marriage after learning that she is pregnant.