Deadliest Catch: Bloodline Show Summary, Upcoming Episodes and TV Guide

With the Cornelia Marie as their mothership, Josh, Casey and Jeff cast lines into Hawaii's most productive offshore fishing spot. When ocean currents dash hopes of a quick bounty, they must apply lessons from the Bering Sea to land the elusive ahi horde.

When sharks take a bite out of their catch, Casey and Jeff must adapt their fishing strategy to outsmart Oahu's apex predators. As Josh returns to help, a visit with an old friend of his father's inspires a bold idea to bring the Cornelia Marie to Hawaii.

When the team realizes they can't hit their delivery deadline on their own, Casey and Jeff convince their dads to come aboard while John helps Josh battle a record Marlin. But when Josh makes a critical trip stateside, he risks catching more than fish.

After breaking into a new market for their catch, Josh, Casey, Jeff and John follow Phil's charts to the east side of the Big Island where they quickly discover that big fish come at the cost of bigger waves, volcanoes and sometimes even teeth.

With their Hawaiian fishing business on the brink of ruin, Josh follows a clue from his brother, Jake, tracing their father's footsteps to a whole new market. As Josh and Casey return to Kona, there's precious little time to deliver on promises.

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.
 

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.
 

The discovery of mysterious fishing charts on the Cornelia Maria leads co-captains Josh Harris and Casey McManus to Hawaii to learn what Josh's late father, Captain Phil Harris, was attempting to accomplish decades ago.