Tom chases Jerry in a pirate ship of Redbeard the Pirate.
Onboard a pirate ship, Captain Redbeard is having a meal with his parrot, Matey. during the meal, pirate Jerry shows up to get some food which angers Redbeard and he calls in his pirate cat crew and scolds them for not being able to catch the mouse. the Cats then begin to chase Jerry, who easily eludes them. throughout the ship while Redbeard and his parrot are yelling at them. Meanwhile, Tom is strolling along the docks and sees the ruckus on the ship and goes to investigate. While watching the chase, Tom easily captures Jerry and is made head mouse catcher on the ship by Redbeard, as He fires his cat crew and makes them walk the plank.
Afterwards, Redbeard tells Tom that the ship is his while Redbeard is ashore at a Pirate convention. Tom's job is to feed Matey a cracker whenever Matey wants one. As Redbeard heads to shore, Jerry tries to escape but Matey informs Tom who easily catches Jerry again. Tom makes Jerry walk the plank and then heads to have some food. While Tom is eating, Matey keeps asking for a cracker all the time preventing Tom from eating and starting to annoy him. Jerry shows up to steal a ham but Matey warns Tom. Jerry eludes Tom and runs away and as Tom is about to give chase Matey demands a cracker. Tom, angry, puts a lid on the parrot and hits the lid repeatedly like a bell to jar the parrot and then runs off to find Jerry.
Matey still under the lid asks for a cracker, which Jerry gives him and Matey warns Jerry that the cat is coming. Tom sees that crackers are a bribe to the bird, stuffs a bunch in Matey's mouth when Matey asks for more crackers. Now on deck, Jerry runs into a cannon. Matey sees this and asks for a cracker, but Jerry doesn't have one so Matey calls for Tom. Tom and Matey try to light the cannon to shoot Jerry away, but Jerry keeps blowing out the wick. Tom corners Jerry into the cannon by trying to stuff as much in as possible, but while Tom is doing this Jerry lights the fuse and shoots Tom up into the sky with the cannonball. Tom then falls back down from the sky and crashes into the pirate ship, with the cannonball, and manages to sink the ship. Matey and Jerry toss Tom a life preserver while they celebrate their new friendship.