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.

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.