Tom sets sail as a lowly cabin cat for the biggest, baddest pirate on the high seas: the infamous Captain Red. Tired of swabbing the deck all day, Tom thinks his luck has changed when a mysterious bottle containing a treasure map washes on board. Tom's dream of finding the treasure for himself is ruined when he discovers the bottle also contains stowaway mouse Jerry. Poor little Jerry has been guarding the treasure map and now has a greedy cat on his paws. The race is on and Tom and Jerry must work together to get past coconut-throwing monkeys and a giant slimy octopus, then outsmart the pirates to find the buried treasure!