"The last thing Cammie Morgan remembers is leaving the Gallagher Academy to protect her friends and family from the Circle of Cavan, an ancient terrorist organization that has been hunting her for over a year. But when Cammie wakes up in an Alpine convent and discovers months have passed, she must now face the fact that her memory is a black hole. The only traces left of Cammie's summer vacation are the bruises on her body and dirt under her nails,...

When a video surfaces of a man making terrorist demands, an ex-teammate of the Shadow Squadron recognizes the man as a former SEAL, lost in an operation nine years before--but something is strange about the video, and it is up to Lieutenant Commander Ryan Cross and his team to locate and capture the apparent traitor in Afghanistan.