Even on a normal day, commercial bluefin tuna fishing comes with a whole host of challenges. But after a period of bad weather and with an upcoming buyer break, the seas are crowded with boats and competition is fierce. After a rough first half of the season catching smaller, low-quality fish, Fat Tuna will fight through it all and stop at nothing to get ahead in the competition.

Stuck in the middle of the pack, Hot Tuna adjusts their strategy when Captain TJ Ott's dad takes out his own boat Bad Fish in order to increase their success as a family business. A friendly wager keeps the Hot Tuna and Bad Fish crews on their toes. As the rest of the fleet struggles to find bait, previous champion Captain Dave Carraro makes a tactical move in order to make their way to the top.