Sunday

In the most challenging fight so far, one crew battles beyond their limits.

When fishing for Bluefin, skill and luck are on the line.

Father figures put their student fishermen to the test catching wicked tuna.

Les and Seth go ballistic when they discover loans are down for the first time in history. Amidst the chaos, a woman brings in home-grown, pharmaceutical grade merchandise that makes Les' head spin. But later, when Les and Seth discover Ashley is to blame for their cash crisis, it sets off an all out war that puts big sister's head on the chopping block.

Ashley comes out from behind the security glass to confront a menacing customer head-on. Then, rare Nirvana memorabilia has Seth and Rich seeing dollar signs, but will the nostalgia cause them to spend too much? And later, a customer gets robbed in the store and demands to see the security tapes. But when the Golds refuse, he makes a threat that forces the family to take him down.

Seth sees stars when a former NHL MVP comes into the shop with a buddy. In a move that defies all logic, and Ashley's best wishes, Seth offers him a job. Then, Ashley squares off with a customer whose personal insults cross the line. Will she take the trash talk or send this lady through the front door? Plus, Les has the opportunity to buy a vintage fortune-telling machine, but only time will tell if this is a rare deal or a real dud. And later, Seth's new hire makes a colossal mistake that puts Seth in the crosshairs.

A storm threatens to knock out the store's power. With piles of cash at risk, Seth scrambles to create a battle plan only to be shot down by his father's old-school philosophy that insists "everything will be ok." In the midst of an already chaotic day, their worst fears are realized. And when the lights go down, the Golds find themselves in the middle of a do-or-die situation.

Seth confronts Les about the blackout and opens the door to a screaming match over their conflicting business styles. Then, a string of problems in the warehouse causes the battle between father and son to worsen. The issue in the warehouse is bleeding them dry, but when Les drops the ball on the situation, Seth steps over his father and begins to craft a takeover.

Les discovers Seth's plan to change the business structure and goes behind his back to confront the employees head-on. Seth is flying high from his newfound taste of power. But when he discovers that his father derailed his master plan, it leads to a stand-off between father and son that could mean a new competitor for Les.

Tensions are at an all time high following Seth's stand-off with Les. The chaos that has been created in the store makes for bad blood and worse business. And as both father and son jockey for power, Ashley stages an intervention that blows up in her face.

Seth must prove his worth after Les hands him the keys to the kingdom. Business heats up, customers unravel and all eyes are on Seth. With so much on the line, will he be able to handle the pressure?

Brian Bass rejoins the Gas Monkeys as Richard plans to resurrect the iconic '92 Chevy 3500 Dually - known as the "Krew Kut" - to reveal at the Lone Star Throwdown.

Richard's plan to reveal the "Krew Kut" Dually at the Lone Star Throwdown hits a snag. With no top on the car, heavy rain forces the crew to change their plans.

Richard makes Brian Bass an offer he can't refuse to turn his antique Ford into the ultimate Gas Monkey shop truck. And, he gets a green 1970 Cuda on the cheap.

The Monkeys find themselves in a hot-rod dilemma when their 1950s flat-head isn't tailor-made for their '33 Ford pickup, as deadline approaches.

It’s week five of the North Atlantic bluefin tuna season and teamwork is the name of the game for Gloucester fleet.