Newcomer Ken Kerr and the 600 ton beast Myrtle Irene threaten Shawn's plan to build his megadredge. The elements jeopardize Emily's plan to dive deeper. Kris heads to The Bluff with a new dredge, but faces complications

Dangers rise with the tide when Shawn has a life-threatening mishap underwater and Emily's dredge, The Eroica, faces a possible collision. George prospects for his brother Dave and his business partner Ken Kerr while the Kellys take home a chunk of gold.

Shawn and Kris battle encroaching miners; Ken's beastly Myrtle Irene continues to invade and operating costs soar; Emily expands her operation, but an air malfunction threatens her season.

In the Bluff's lawless waters, Shawn and Kris wield brute strength and make verbal threats while standing their ground against the competition; in Nome, Alaska, Emily and George gamble on new strategies and resources.

The approach of a violent storm pits safety against the drive to succeed; Ken rushes to free the Myrtle before it's destroyed; Kris risks being stranded; Shawn mines until the Bering Sea rips up his dredge; Emily attempts to appease nature.

A violent midsummer storm forces the fleet off the mining grounds. Shawn, Ken, Emily and Kris race to repair and improve their dredges for an end of season attack while reliving some of their most dangerous and triumphant moments on the Berinq Sea.

The Bering Sea battle heats up as Shawn bets big on a new discovery he hopes will keep him ahead of Ken's massive dredge. The Kellys are forced to find new ground. Emily nearly boils a diver alive.

Shawn works overtime to cover for his exhausted crew. Kris is blindsided by the loss of his lead diver. Emily jumps in to prevent a fuel spill. Ken and George collaborate to find Myrtle a motherlode.

Winter winds force the captains to reevaluate risk and reward. Shawn's mega-barge extraction takes a turn for the worse. Ken pushes the Myrtle to the limit on a 5-day run. Emily sends her divers deeper. Kris invents a new form of prospecting.

In a race against winter, Shawn extends his sluice to get more gold. Ken pushes the Myrtle 24 hours a day. Emily tangles with the tide. Kris battles a bed of quartz and George enjoys a season-ending dive with his son.

Desperate to be Nome's gold king, Shawn risks the Christine Rose in dangerous waters. Ken struggles to free the Myrtle from the harbor. Emily fights a fouled airline and Kris attempts one more dive at the Bluff.

In a shocking confrontation, Nome's top two miners Shawn and Ken come face to face after a season of squaring off, having revolutionized mining with bigger, badder, gold-grabbing machines. Secrets are revealed through never before seen footage.

Despite the worst conditions in a decade, the miners hedge their bets as Shawn and Ken go head to head with their largest ships ever. Emily confronts the elements while Kris leads his family with a newfound determination.

Shawn's rival Ken unleashes his 600-ton gold gobbler while Shawn fights to keep a family dynasty. Vernon makes a valiant return in an attempt to strike it rich with a new dredge. Emily fights to reclaims her hotspot.

An epic Clash of Titans grips the gold mining fleet as Shawn constructs the largest washplant in Nome and Ken's mining monster roars to life. Vern prospects using his new innovations. Ripping currents threaten the Kellys.

Vernon and his crew get stranded in the Yukon. Shawn finds a good luck charm in his son. Ken suffers a mechanical setback and Emily sends rookie diver Chase underwater.

Whipping winds and crashing waves force the miners to ask themselves how hard they're willing to fight. Shawn channels his inner MacGyver to fix a stalled machine. Kris acts boldly. Vern must make a life or death decision.

Before the winter freeze out, Shawn gambles to dig deeper than ever before as Ken brings the heat. The Kellys restart from scratch with a new dredge design. Emily aims to work nonstop.

To test mother nature's stamina, Shawn pushes the Christine Rose to its maximum work depth in the face of massive swells while Ken digs on an untouched, gold-rich dirt patch. Emily faces ripping currents and an exhausted diver. Vernon hits the open seas.

When a fellow miner vanishes, Ken and Shawn interrupt their operations to join the search and rescue. Vern finally unleashes on the Bering Sea.

Shawn and Ken are neck and neck to win their $130K wager as the frigid end approaches with some dangerous winds that threaten Shawn's wash-plant installation. Emily races Mother Nature. Vern risks the Goldship while on the hunt for pay dirt.

With Nome in the crosshairs of a winter storm that will shut down the harbor, Shawn and Ken battle to win their bet, but only one will be crowned The Gold King.

Summer temperatures at an all time high disrupt the seafloor, causing miners to find new strategies. Shawn fights a legal battle. Ken tries to keep his gold crown, while Emily and the Kellys look to expand their operations.

As summer kicks into gear, Ken and the Myrtle Irene get stuck in the mud. The Kellys are forced to bail out at Fort Davis. Elaine tries to make up for lost time due to Vernon's late start. And Shawn receives word on the fate of the Christine Rose.

Shawn gets his first taste of the shifting seabed. Ken tries a new perspective to find new ground. Kris and Emily each try out greenhorn divers to boost their productivity, but the plan grinds to a halt for one of them.

As the miners look to find more valuable ground, Shawn must fight the sea's shifting tide, Ken strains his excavator arm when digging hard cobble, Kris tries his chances with a rookie diver and new diver Brian saves Vernon's day.

Tensions fly as Brad leads The Reaper into hostile waters where Emily defends Claim 14 from claim jumpers. Shawn hunts an elusive pay-streak. Ken puts a risky Myrtle Irene repair to the test.

Shawn's rocky pay-streak takes him for a wild ride. Kris raids another claim but a rival dredge fights back. Vernon loses patience with his crew's performance. Ken tests a new operator to keep running around the clock.

With a massive storm about to hit Nome, Shawn and Ken push their operations to the brink to get one last score in. Emily gambles on untested ground. Kris battles bad attitudes. One dredge pushes too far into the storm, forcing its crew to abandon ship.

After the raging storm, Ken learns the Myrtle Irene's fate. Shawn uses a new tool to hunt for new hotspots. Emily brings on a new crew member from her past. Vernon tries his luck at river mining. Kris gambles on an alliance to turn his season around.

Shawn confronts his dad for the sake of the family operation to disastrous results. Emily brings her father aboard The Eroica.

As summer’s end approaches, Shawn claws his way closer to the top of the gold count. Emily leaves her unpredictable father to tend on the Eroica. Kris works his new partnership in pursuit of a brighter future. And Ken pushes the repaired Myrtle Irene.

Kris mines an undersea trench, but a cave-in of rocks threatens his life, pinning him to the seafloor. Desperate to find a patch of career-saving gold, Shawn follows a hunch to deeper ground.

In the midst of the season-ending storm, Emily plays chicken with Mother Nature, but may lose her diver in the process. Ken pushes the Myrtle to its max. Elaine proves herself to Vern by calling the shots.

Winter has come -- along with the thinnest, most unpredictable ice in decades. After three years, Shawn returns to diving under the ice in pursuit of the Tomcod claim. Kris tries to set up and mine in one day. Emily's dependable Claim 14 shocks her.

Only days into the winter mining season, a regulator freeze up cuts off Shawn's air supply. Emily negotiates with Mr. Gold for season-saving coordinates. Vernon returns to the ice with an eye to buy Claim 16. The Kellys get on some gold.

The clock ticks as an impending arctic storm gathers strength; Shawn can't quit the gold; Kris gambles on another rookie miner; Emily finds gold but her equipment fails; Vernon risks everything to test Claim 16.

Following the arctic storm that drove everyone to shore; Shawn embarks on a marathon dive; Kris unveils a diving relay with The Reaper's new diver Shaunna; Emily takes another desperate shot at TOMCOD gold.

Suffering the icy burn of possible defeat, Kris wrecks his 3-diver relay plan and abandons his crew. Shawn is forced to question TOMCOD. Emily returns home to Claim 14. Vernon gambles on the edge of the ice.

Shawn races to prove the viability of the TOMCOD; Kris makes amends with his crew; Brad dives for the first time in five years; Emily tries to break her ice season curse.

When the temperature plummets to a season low, Shawn fights frozen ground with steam heat. Kris' hot plan to beat the cold fizzles quickly. Vernon gambles on a new spot.

As an arctic blizzard wreaks havoc across Nome; Kris finds gold under the ice, but fire erupts overhead; Shawn struggles to rescue his operation; Emily risks it all on a double dive; Vernon leans on a diver making her comeback.

On this ice season Judgement Day, Shawn pushes himself and his equipment to the edge. Kris and the Kellys rise from the ashes of an engine shack fire. Vernon pitches his operation to a big time investor.

As the miners rush to solid ground before the ice vanishes, Mr. Gold outlasts the fleet to secure TOMCOD. Kris assembles a makeshift operation. Emily rolls the dice on one last dive and Vernon hightails it to land on dangerous ice.

With new claims up for grabs, old faces return to Nome's wild west as Mr. Gold launches his biggest season. Kris' Elim plan hits a hiccup. Vernon hustles to assemble his dream team. Emily searches for her own claim. Zeke attempts an ambitious creation.

Shawn strikes a deal with Dave Young that comes with a ticking clock. Zeke's new dredge Black Swan debuts on the Bering Sea. Kris' backup plan wildly backfires. Vernon and Emily seek out their own claims.

Shawn must get the remastered Myrtle Irene onto the water. Zeke bets on himself by helping on Vernon's claim. Emily hopes to add to her all-star squad. Kris and his sceptic crew finally head to Elim.

Kris and crew face one mishap after another in Elim. Shawn pursues complete control over the inland mine. Vernon pits his divers against each other in a gold-getting competition. Steve and Emily prospect on the beach.

The Kellys face gunfire from angry locals in Elim. Shawn injures himself on the Myrtle. Emily loses her rock-solid diver. Vernon finds a secret golden spot. The Black Swan finally gets on gold.

Shawn pulls an all-nighter with the revamped Myrtle. The Kelly's season might be saved with a little help. Emily acts quick in a dangerous situation. Vernon hopes hiring Steve again won't be a mistake. Zeke enlists his brother to get them on gold.

Zeke hopes to find his perfect claim match. Shawn needs the Myrtle to save the Christine Rose. Emily is down to her last shot. Vernon's luck with divers gets worse. Kris is finally on a hot streak, but will it last?

Kris attempts to save his season with a move that may be his worst idea yet. Shawn hunts for a pay-streak to solidify his position at the top. Emily prospects a claim to call her own. Vern tries out a "crazy" new diver. Zeke sets sail on an adventure.

Nome's King Shawn edges closer to his goal of ultimate domination. Knight Kris tries his hand on an excavator dredge. Queen Emily has a pump crisis that could end her season. Wizard Zeke returns to Cape Rodney while Ogre Vernon leans on his last diver.

With just 24 hours left to make or break the season, an equipment malfunction jeopardizes Shawn's operation. Kris becomes the last Kelly standing. Vernon enlists Steve to prospect for winter. Zeke searches Cape Rodney. Emily finishes strong.