Rippen and Larry are ghost hunters Penn and his team have to protect a ghost name Sonny from them.
In the episode, Larry falls down an elevator and meets Sonny. He even helps Sonny get his rubber chicken because ghosts can't fly through glass. Larry even cries when he has to open limbo. Making Rippen close Limbo before Sonny can go in. Eventually the realtor comes and loves that Sonny is in the tobogganing place. So the owners let him stay.