"Even though he's on forced leave from the clandestine intelligence group known as The Campus, Jack Ryan, Jr., still finds himself caught in the crosshairs after an attempt on his life is thwarted when he turns the tables on his would-be dispatcher. Convinced that the attack is linked to his recent covert actions, Jack sets out to discover who wants him dead, and why. Using clues fround on the now dead assassin, Jack pursues the investigation, following...

Husband and wife treasure hunting team Sam and Remi Fargo find a World War II U-boat in the swamps in Maryland and end up being pursued by a Russian Persian millionaire who will stop at nothing to get his hands on a bottle the Fargos now hold which was part of Napoleon's Lost Cellar.

Recruited by Sigma Force to extract a Russian pharmaceutical magnate, who holds the biological key to a new weapons system, from Siberia, former Army Ranger Tucker Wayne and his military working dog Kane must solve an ancient mystery before the modern world suffers a fate worse than death.