Summer 1941: Hitler seems unstoppable, invading the Soviet Union. Convoys of cargo ships with war materials began the perilous journey to Murmansk. Ordinary sailors facing German superiority in the icy Arctic sea with lives at stake.

Having endured his legendary twelve labors, Hercules, the Greek demigod, has his life as a sword-for-hire tested when the King of Thrace and his daughter seek his aid in defeating a tyrannical warlord.