The team is sent into Iran to deploy sensors for detecting nuclear weapons, but the mission becomes complicated when civilians become involved. On base, Tiffy considers whether she should help a soldier who went AWOL and Molly visits Jeremy in the burn unit. She becomes disappointed when Crystal does not come to visit him.

The team is sent on a mission to protect a Middle Eastern dignitary at the United Nations, but must defuse a bomb found in the office of the U.N. Secretary General. Meanwhile, Molly and Tiffy visit Vietnam to honor the soldiers who fought there. On base, Crystal tries to seduce Mack and threatens to tell Tiffy about their relationship.

The team competes against other elite military forces from around the world in counter-terrorism games staged in Hamburg, Germany, but the games turn deadly when someone tries to use them to stage a real act of terrorism. Meanwhile, Kim meets a former boyfriend while on a business trip and learns that he is now a multimillionaire and recently divorced.