The Bear Scouts work on their Scuba-diving Merit Badge, while trying to discover what is causing the pollution in Lake Grizzly that is making Old Jake, a very large catfish, sick.
When the Bear Scouts meet Bigpaw, they can hardly believe their eyes. He's a King-Kong size bear! Is Bigpaw really dangerous? Or is he just a big old lovable bear?
Ralph Ripoff comes up with a plan to bring gambling to Bear Country by turning his houseboat into a moving casino, and the Bear Scouts do their best to rid their community of this riverboat ripoff.