Patricia must work with an old flame turned foe to help Dalton and team as they race to save an American hacker who alone has the ability to stop a hijacked submarine from wreaking disaster.

When a teenager puts herself and the nation at risk by hacking a U.S. nuclear submarine, Dalton and team set out to find her and, in the process, uncover an explosive link to Patricia's past.

Hannah joins Dalton and team in the field when FARC rebels hijack a passenger flight in Colombia.

In hostile territory and with one of their own in mortal danger, Dalton and team fight to survive, while back in D.C., Patricia will stop at nothing to help them, including risking her career.

Having learned who was responsible for bombing the team's camp in Turkey, Patricia sends Dalton and crew on a deeply dangerous and personal undercover mission to Iran to exact justice.

Dalton and the team must go old school, forgoing all modern communication, during a stealth mission to retrieve a downed drone from dangerous territory on the Chinese-Mongolian border.