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.

The team captures three Pakistani men from a Waziristan village to take in for questioning, but they are pursued by the local militia. After arriving at an Army support base in a remote area of Afghanistan, the team find the base in a state of disarray and must prepare the troops against an attack from the militia.

Grey becomes involved in a relationship with a female Israeli soldier when the team travels to Israel to study advanced desert warfare. When the two go off into the desert alone, they become surrounded by hostile Arab militia. On base, Tiffy stumbles upon a windfall which makes her question her motives.