SeaQuest is ordered to search out and destroy a renegade activist submarine which is sinking whaling ships in the North Sea, which are breaking UEO laws. Bridger is conflicted about the order, and promptly resigns his command. Bridger tells Lucas he has to leave too. However, Lucas stows away to remain on the boat.
Bridger, upon learning who the renegade sub’s captain is, reclaims command of seaQuest and goes after someone who he once thought of as a friend, and whom he also thought was dead.