After a deadly chemical leak forces Jake to abandon ship, Keith races to locate the Titan Explorer crew and save their ailing vessel. With Sig aboard the Time Bandit, Mandy takes the Northwestern's helm for her first-ever solo king crab season.

A brutal knife injury on the Northwestern leaves Sig scrambling. After one crewman quits, tensions explode on the Confidence until even the co-captain revolts. The Wizard faces a nightmarish mechanical failure when Keith's throttle fails in rough seas.