While watching a television program with Elmer, Yosemite Sam is hypnotized and thinks that he is a famous knight and proceeds on a Don Quixote-type mission.; Elmer tries unsuccessfully to prevent Daffy from following him on his vacation.; Elmer's lookalike nephew Junior arrives for a visit. When he puts on his uncle's clothes, Junior is mistaken for Elmer by Daffy Duck.; In a department store, Daffy makes trouble for floor walker Elmer.; Yosemite Sam tries to steal rhubarb from Elmer's garden.; Porter Elmer tries to throw stowaway Daffy off the train.; Sylvester tries to catch Tweety with a simple box and stick trap, but Tweety turns the tables on him.; Elmer gets punished when he tries to use a slug in Bugs' new penny arcade.; Bugs tries to help Porky in the kitchen, but Porky forgets to tell him an important instruction.; Elmer has trouble getting his hat to stay on a hat rack.