What could be more relaxing and normal than a fishing trip?

With his two kids, Mark settles in for a peaceful day of fishing on Lake Erie. The presence of a pirate navy controlling the waters alters their plans. Fleeing a small armada of speed boats, they hide on shore, but witness the shooting of a man and the capture of a woman and girl.

With the kids going for backup, Mark takes the wounded man for medical help, then rashly attempts to rescue the woman and girl. Forming an alliance with a strange tribe living on the shores, he manages to free the girl but gets captured himself, and is transferred to a freighter the pirates use as a floating base.Returning with reinforcements, Bobby and Becca must rescue their father before the captain executes him.