It's week 13 of the North Atlantic bluefin tuna season, and with only three weeks left to fish and the No. 1 position on the line, every Gloucester captain is desperate to stack the deck with bluefin and earn some final paychecks before the season closes. Last season's top-earning captain, Dave Carraro of FV-Tuna.com, is leading the fleet, and he and his crew are determined to stop at nothing to repeat last year's success. But Dave's treatment of other boats in the fleet has not earned him any friends this season, and the other captains each have a few reasons to beat him. With the end in sight, it's the closest race in Wicked Tuna history and a new frontrunner threatens to emerge with each bluefin caught.

It's the final week of the season and Hard Merchandise holds a narrow lead over the fleet with fifteen fish. Hard Merchandise's closest rivals FV–Tuna.com, Pin Wheel, and Hot Tuna are all within striking distance of the lead and when a single tuna can be worth upwards of $20,000 the battle for the top spot will go down to the final day. Will Marciano be able to hold onto his lead? Will Dot Com reclaim their title for the second year in a row? Will Paul Hebert make enough money to be able to support his family through the winter? Will Tyler reclaim former glory or will TJ win the title for the first time?