It looks like it's going to be a tough day on the Ocean when the Mexican authorities arrive. But the team's paperwork is in order so they return to big fishing. Chris loads the hook for a big one but a smaller male steals the bait and is hooked. It's Skid - he's a fighter and comes in bumpy. And he has a surprise for Dr. Domeier and a possible clue to great white mating sites - sperm in his claspers. They end the day with another catch - the big girl with the droopy fin. It's Keiko- the party fish.