Bugs' Uncle Buckskin brings a covered wagon full of gold nuggets to town.; Petunia is the star of the Barnyard Players show "Invasion from Mars."; Daffy convinces Elmer that ducks, not dogs, are man's best friend.; Manny Moth is stealing Mary Jane's party invitations to built a paper airplane that will fly him to the moon.; Inspired by a western movie, Henery tries to lasso some chickens while riding his bicycle.; Tweety and Sylvester trade places for a day, only to find the other's job isn't as easy as they thought.; Papacito is hired as a doorman for a rich man's party.