Nate and Tony are shocked when they see a woman being thrown out of a car along with 6 bags of cocaine. The girl tells them she has been purchasing drugs from the owner of a cab firm and that she was beaten up and thrown out if the car because she couldn't pay. When Terry works undercover at the cab firm he finds himself delivering a letter bomb.

Whilst Terry Perkins is working undercover as a taxis driver he is shocked when an armed passenger kidnaps a German girl and gets into the back of his car. When the team at Sun Hill find out what is going on they learn that they will have to work with their German counterparts.