After saving Jules and her roommate from certain peril in the deep rainforest of the Amazon, Rick Waters and the crew head to Rio for some badly needed R&R. As soon as they arrive, they find out Rick's first mate, Johnie, is framed for burglary and murder in Destin, Florida. Rick and the gang must prove Johnie’s innocence. The proof they need may be hidden in the grass flats in the backwaters of Choctawhatchee Bay.