"While trailing a Chinese nuclear attack sub, Jerry Mitchell, the captain of USS North Dakota, is shocked to see the Chinese boat torpedo a Vietnamese merchant ship. This blatant act of aggression is the opening gambit in a war that has blindsided the U.S. and quickly embroiled all nations in the western Pacific. These nations, bound together in the newly formed Littoral Alliance, have begun a covert submarine campaign aimed at crippling China's economy...

"Jerry Mitchell, now the commodore of submarine Development Squadron Five, is dismayed when USS Toledo is reported missing in Arctic waters, close to Russian territory. The vessel is captained by his former shipmate and close friend, Lenny Berg. Eager to investigate, Jerry convinces the Navy to redirect one of his squadron's boats to find out what happened."--Amazon