With added scenes and facts -- the miners search for new strategies after sky-high summer temperatures disrupt the seafloor. Shawn fights a legal battle and Ken tries to keep his crown. Meanwhile, the Kellys look to expand.
With added scenes and facts -- Ken and the Myrtle Irene get stuck while the Kellys bail out at Fort Davis. Meanwhile, Elaine makes up for lost time and Shawn gets word on the fate of his Christine Rose.
With added scenes and facts -- Shawn experiences a shifting seabed while Ken tries to find new ground. Meanwhile Kris and Emily go with greenhorn divers.
With added scenes and facts -- Shawn fights a shifting tide while Ken strains his excavator. Meanwhile, Kris works with a rookie and Brian saves Vernon's day.
With added scenes and facts -- Brad heads into hostile waters, Emily defends Claim 14 from jumpers, Shawn hunts a pay streak and Ken puts Myrtle Irene to the test.
With added scenes and facts -- Shawn's pay streak takes a wild turn while Kris raids another claim. Meanwhile, Vernon loses patience with his crew and Ken tests a new operator.
With added scenes and facts -- Shawn and Ken push their operations to the brink before a big storm sets in. Meanwhile, Emily gambles on untested ground, Kris battles bad attitudes and one dredge pushes too far into the storm.
With added scenes and facts -- Ken learns the Myrtle Irene's fate after a bad storm and Shawn uses a new tool to find hotspots. Meanwhile, Emily brings on a new crew member, Vernon tries his luck at river mining and Kris gambles with his season.
With added scenes and facts -- Shawn confronts his dad and Emily brings hers aboard the Eroica. Meanwhile, Vernon looks for a replacement diver.
With added scenes and facts -- Shawn claws his way to the top and Emily leaves her father to tend the Eroica. Meanwhile, Kris pursues a brighter future and Ken pushes the Myrtle Irene.
With added scenes and facts -- Nome's gold fever is tested by a season-ending storm and Shawn digs into deep water. Myrtle is pushed to the max and Kris goes into an undersea trench while Emily plays chicken with Mother Nature.
With added scenes and facts -- winter has arrived, along with the thinnest, most unpredictable ice in decades. Emily's dependable Claim 14 shocks her, while Shawn returns to diving under the ice in pursuit of the Tomcod claim.
With added scenes and facts -- a regulator freeze-up cuts off Shawn's air supply just days into the winter mining season. Vernon returns to the ice aiming to buy Claim 16, while Emily negotiates with Mr. Gold for season-saving coordinates.
With added scenes and facts -- a violent arctic storm approaches as Shawn struggles to quit the gold. Kris gambles on another rookie, Emily's equipment fails and Vernon risks it all.
With added scenes and facts -- Shawn goes on a marathon dive while Kris unveils a diving relay with Shaunna. Later, Emily takes another shot at TOMCOD gold.
With added scenes and facts -- Kris wrecks his 3-diver relay plan and abandons his crew. Emily returns home to Claim 14, and Vernon gambles on the edge of the ice. Meanwhile, Shawn is forced to question TOMCOD.
With added scenes and facts -- the clock ticks as Shawn races to prove the viability of the TOMCOD. Brad dives for the first time in five years, saving the day with a surprise. Emily tries to break her ice season curse on Claim 14.
With added scenes and facts -- Shawn fights frozen ground and Kris' plan to beat the cold fizzles out as temperatures plummet to a season low. Later, Vernon takes his chances on a new spot.
With added scenes and facts -- Kris finds gold under the ice with fire overhead, Shawn struggles to save his operation, Emily risks it all and Vernon leans on a diver during her comeback.
With added scenes and facts -- Shawn pushes his equipment to the edge while Kris and the Kellys rise from the ashes after an engine shack fire. Later, Vernon pitches his operation to a big investor.
With added scenes and facts -- Mr. Gold secures TOMCOD during the final push to find solid ground before the ice vanishes. Kris builds a makeshift operation while Emily gambles on one last dive and Vernon crosses dangerous ice.