Warren Custer (Bobby Van), a charming grifter, has managed to swindle various people out of over $2 million. While being arraigned in a Los Angeles courthouse, he "accidentally" bumps his guard into a charming lady and knocks over her purse, then gets on board the elevator with the lady while the guard is picking up the contents of the purse. Soon Custer is on board a Mexican-bound cruise ship -- not such a good idea, because the U.S. Marshal he duped, along with many of his other swindling victims, have also gotten tickets (as have Eddie and his girlfriend). Custer poses as an engine-room worker and looks for his chance to jump overboard, where a small craft piloted by a Mexican fortune hunter (Thom Christopher, with hair) will pick him up. Custer does jump, but a couple on the deck below see him fall and shout out an alarm along with another minor character, a sees-all tells-all assistant purser who's been following Custer around. The ship mounts a rescue effort, along with the ...