The Sizzling Six are back to solve another environmental issue—this time while spending the summer at a beach cottage in southern Alabama. When one of the worst oil spills in history threatens the critically endangered diamondback terrapins, the Sizzling Six rush into action to help protect them. But as the oil continues to spread throughout the Gulf of Mexico, time is running out for the terrapins and other marine life. The Sizzling Six quickly learn that cleaning up after the spill is not as easy as they first thought. Will they be able to help save the terrapins before it's too late?