Deadliest Catch: Bloodline

Left mysterious Hawaiian fishing charts by his late father, Josh Harris and his business partner Casey McManus set out to uncover what his father was doing on the islands.

Josh, Casey and Jeff cast lines into Hawaii’s most productive offshore fishing spot. But strong ocean currents dash their hopes of a quick bounty.

Josh Harris gambles big on bringing the Cornelia Marie to Hawaii.

An old friend of Phil inspires Josh to bring the Cornelia Marie to Hawaii.

With only two days left before they must head back to Dutch Harbor for King Crab season, Josh and Casey have one last goal to achieve in Hawaii -- land a big marlin, the one fish that eluded Phil Harris decades ago.

Inspired by Phil's love of history, Josh, Casey and Johnathan Hillstrand brave unknown waters in the dead of night to try their hand at the ancient Hawaiian Ika-Shibi fishing technique.

On Hawaii's Big Island, Josh enlists the help of Johnathan Hillstrand to help him dive deeper into the mystery of Phil's charts and gain insight into the time Phil spent in Kona Town.

Josh and his crew get an opportunity to supply ahi and mahi to a local restaurant and hope Phil's notes will lead them to a big payday. It's their first chance to turn a profit but if they want to succeed, they must first learn the Hawaiian way.

Ever since Josh and Casey first arrived in Hawaii with Phil's fishing charts and dreams of an off season fishing business, Jeff Silva stepped up as the rock steady partner helping them find the fish. Now, Jeff faces a monumental change in his own future.

After a gruelling Opilio season in Alaska, Captains Josh and Casey rejoin partner, Jeff Silva - but find competition at their lucrative fishing grounds in Hawaii.

Josh must face his fear or see his dream succumb to Hawaii’s apex predator.