The Wizard catches fire in a violent storm known as a bomb cyclone. Josh and Casey attempt to fish in 30-foot seas, while two rogue waves slam the Southern Wind. Wild Bill grinds his crew 72 straight hours bringing himself to the brink of collapse.

As an injury knocks Sig out of his wheelhouse, Mandy takes the helm to face a disgruntled Northwestern crew. On the Wizard, damaged hydraulics and an umbilical hernia deal Keith a double gut punch. Josh and Casey suffer tragedy on the Cornelia Marie.