When an American troupe of dancing street clowns offer to take you for a dance in the streets, you should probably call 911, inform them of your location, and then jump at the chance. Karl transforms into the least Karl-like character in history, KP the Clown, and takes off to start a flash mob performance in the middle of a neighbourhood. Why? Just to make people happy, and incorporate his most spiffingly English delicacy, crumpets, into his dance routine.