Stanley and Cyrus, two performing seals, are injured in a fall during a show and send for Dosthara Honda Hitha. With the seals out of action, it's up to the Pushmi-Pullyu to save the circus. The pirates, meanwhile, trick their way into the big top disguised as trapeze artists, and once inside use clown costumes in their latest attempt to steal the Doctor's secret - with a determined sheriff on their tail.