Mr Benn visits a mysterious costume shop and tries on a clown costume, subsequently taking him to an open land and coming to the aide of a circus troupe.
Mr Benn visits a mysterious costume shop and tries on a zookeeper costume, subsequently taking him to zoo in which he finds himself helping the caged animals.
Mr Benn visits a mysterious costume shop and tries on a diver costume, subsequently taking him to the sea, coming to the aide of Sea Captains as well as King Neptune himself.
Mr Benn visits a mysterious costume shop and tries on a cowboy costume, subsequently taking him to the Wild West, taking part in a game of hide and seek with Cowboys and Indians.
Mr Benn visits a mysterious costume shop and tries on a costume, subsequently taking him to the desert in which he has a magic carpet, soon to be accompanied by a genie in a bottle.
Mr Benn visits a mysterious costume shop and tries on a pirate costume, subsequently taking him to a pirate ship in which he finds himself in the middle of a storm.