A Wall Street Journal bestseller.

John Dempsey, former Navy SEAL and Tier One operator, is back. Only a few months into his new life as an operative for Ember, the United States' most covert counterterrorism entity, he must stop an old nemesis who's resurfaced after ten years of operating in the shadows. From the deserts of Iraq, through the jungles of Guatemala, to the streets of suburbia, Dempsey and his Ember team race against time to stop a series of horrific and devious attacks against the homeland.

In this second installment of the Tier One series, John Dempsey faces his greatest challenge as he continues to evolve from a decorated Navy SEAL into the country's most lethal protector.

Brian Andrews is a US Navy veteran who served as an officer on a 688-class fast-attack submarine in the Pacific. He is a Park Leadership Fellow and holds a master’s degree in business from Cornell University. He is the author of the Think Tank series of thrillers (The Infiltration Game, The Calypso Directive). Born and raised in the Midwest, Andrews lives in Tornado Alley with his wife and three daughters.

Jeffrey Wilson has worked as an actor, firefighter, paramedic, jet pilot, and diving instructor, as well as a vascular and trauma surgeon. He served in the US Navy for fourteen years and made multiple deployments as a combat surgeon. He is the author of three award-winning supernatural thrillers: The Traiteur’s Ring, The Donors, and Fade to Black. He and his wife, Wendy, live in Southwest Florida with their four children.

Andrews and Wilson also coauthor the Nick Foley Thriller series (Beijing Red, Hong Kong Black) under the pen name Alex Ryan.