Hash! - the big sneeze is going around among the Muppets. This is a case for detective Elmo. In the guise of a detective, Elmo sets out to solve the strange sneezing attacks. In the process, he discovers that all the victims received a delivery of a cube just before the sneezing attack ... Today Elmo is an airplane pilot who is supposed to fly a penguin bride to her wedding at the South Pole. The seemingly quiet flight becomes a race against time - not least because Elmo has to stop over again and again at the bride's request to get bridal jewelry ...