At the direction of his doctor, the bad-tempered Mr. Bang takes the trolley to a holiday to the beach. Also on his trip on the Toonerville Trolley are the conductor Skipper, his wife Katrinka and her family, and an obnoxious dog. Mr. Bang's holiday is anything but a day at the beach. Instead of getting rest, he is chased by a menacing octopus. Katrinka saves him, and Mr. Bang rushes back to the doctor even more mean and grouchy than before. At the doctor's, he throws such a tantrum that he knocks himself out.