Andy invents a homemade diving helmet. When he and Charlie test it they become involved in a plot by crooks to plant dynamite underwater to blow up a bank's vault next to the harbor.; Woody gets a job with a delivery service.; Oswald gets a job with the Chamber of Commerce and goes to meet Lord Byron Bunion at the docks.; Woody is forced to take a job at a soda fountain after ruining fresh cement in front of the store. He brings in a big crowd, but gives them free sodas instead of charging them.; Red Cardinal hires a bum to keep Homer from being able to take Carrie to a dance.; Woody gets in trouble when he yells at an electric lineman working at the top of a pole.; Woody crashes through a fence to catch a batted baseball.