Confrontation - beneath the polar icecap . . .
Admiral of the Russian Northern Fleet of Submarines Alexi Novskoyy, frustrated at what he sees as his nation's timid world presence in the past-Cold War era, sets out for the Arctic Circle aboard the OMEGA-class, state-of-the-art flagship vessel F.S. "Kaliningrad". From there he secretly plots to deploy his fleet to within missile range of the USA to force American compliance in drastic top-level negotiations.
Meanwhile, Michael Pacino, captain of the USS "Devilfish", is sent to the Northern Polar Icecap to get a sound-signature of the "Kaliningrad". Pacino soon learns that Novskoyy - the man who murdered his father over twenty years before during the Cold War - is commanding the Russian vessel. The ensuing underwater chases and battles build to a stunning showdown between the two submarines both below and above the icecap at the top of the world . . .