Sea Otter Swim Jimmy reveals to the other Wild Kratts that he's not a very good swimmer. To help Jimmy learn to swim better, the Kratt Brothers take Jimmy to meet a friend of theirs-a sea otter named Coach. While Jimmy practices swimming and diving, the Wild Kratts learn about the features that make sea otters such good swimmers. They also lose a sea otter disc and they challenge Jimmy to find it first and if he finds the disc he can activate sea otter powers.