If there's any upside to being an adult, it's that it comes with an awful lot of personal experience. Experience that leads to advice that can help the younger generation avoid the same mistakes we made when we were kids! Mr. Gully's a wise teacher who knows all to well that younger siblings mean well, they just sometimes get caught up in the moment. Can Mooch can salvage his day at the beach with Scoop? And did Mr. Gully's kids at least get him something from the ice cream man? One of these questions will be answered in the big finale on Thursday!