Gandy is hitch hiking next to his trailer. A dog comes by and latches on to it. They spend a restless night, fighting off hundreds of mosquitoes. Eventually Gandy's new acquaintance has enough and flees, but the skeeter swarm ends up flying the caravan away after their stingers are stuck in the roof.
Did You Know?
The dog has the "irritated Jimmy Durante" voice one associates with Sourpuss. It's possible they were thinking of redoing their only recently invented character. See more