Tom's master is going fishing, and Tom comes along. Jerry comes along, too, despite Tom's attempt to stop him, and manages to get Tom in all kinds of trouble with his master, leading Tom to hit the master with a frying pan, flooring the car's accelerator, and painting a shoe to look like Jerry so Tom hits it when the master steps out. They finally make it to the fishing boat, where Jerry was hiding in the picnic basket; Tom uses the bilge pump to remove him - and the entire lunch. Jerry ties the fishing lines together and gets Tom in more trouble.