The play involves the efforts of the Narrator and three Fun Merchants to assemble a toy machine they have invented. Conflict arises when Kalibad, a toy spy, arrives and attempts to sabotage the invention. The main character in the show is The Audience, whose vocal and physical participation is necessary for the play to exist. The children of the audience shout warnings of Kalibad's arrival, carry and actually assemble the invention on stage, put together a cage and trap Kalibad inside of it, and co operate in other tasks. If the children are successful in their efforts, they receive a surprise souvenir of their adventure. Playing time is forty five minutes to one hour, depending upon the amount of participation desired. No stage is necessary.