USS Teuthis Saturation Dive Team Officer-in-Charge (OIC) Mac McDowell is leading his submarine team on a mission to lay SOSUS arrays under the ice in the Arctic when they clash with a new Alfa-class highly automated Soviet submarine. Overwhelmed by mechanical problems, the Soviet crew abandons their sub near Pt. Barrow, Alaska. The Teuthis skipper launches DSRV-1 Mystic, so Mac and his crew can board the empty sub and gather intelligence. The arrival of an even more advanced Soviet sub leads to breathtaking underwater clashes with the specter of war looming. Will the Soviets sink Mac and his crew to their watery graves, or will Teuthis safely return to Alaska where Mac's new love, Kate, anxiously awaits his return?

Saturation Dive Team Officer-in-Charge (OIC) Mac McDowell and his team battle the crew of a Soviet submarine trying to salvage another sub.

Does the uniform mean that much, or is it something inside you that makes you part of the corps?On her maiden voyage, an expeditionary mission to explore an icy moon in the Glirase system, Dr. Leba Brader learns firsthand how different military life can be when compared to the comforts of home. After the traumatic loss of her friend and mentor, Brader disobeys a direct order, which results in a significant and unexpected change in her status.Squad Leader Tivon Garnet is an exper

As USS Teuthis Saturation Dive Team Officer-in-Charge (OIC) Mac McDowell leads his submarine team laying SOSUS arrays under the Arctic ice, they capture an abandoned fully automated Alfa-class Soviet sub. Piloting their prize through the ice pack to the U.S. East Coast, they must evade or confront other Soviet subs trying to recover the sub—or sink it. Breathtaking deep-sea clashes erupt, including hand-to-hand combat with Soviet Morskoy Spetsnaz divers under the ice. Too far from Teuthis to escape, the Americans are accosted by a 5-ton orca. Will Mac’s ship survive long enough to reach friendly waters, or will the men become just another meal for a deadly whale?

As USS Teuthis Saturation Dive Team Officer-in-Charge (OIC) Mac McDowell leads his submarine team laying SOSUS arrays under the Arctic ice, they capture an abandoned fully automated Alfa-class Soviet sub. Piloting their prize through the ice pack to the U.S. East Coast, they must evade or confront other Soviet subs trying to recover the sub-or sink it. Breathtaking deep-sea clashes erupt, including hand-to-hand combat with Soviet Morskoy Spetsnaz divers under the ice. Too far from Teuthis to escape, the Americans are accosted by a 5-ton orca. Will Mac's ship survive long enough to reach friendly waters, or will the men become just another meal for a deadly whale?