In a spectacular nighttime raid, five masked men drop by parachute onto an army base and steal several Stinger rockets. When the soldiers try to pursue them, they fire off a grenade which kills one soldier and severely wounds three others. No sooner does the AK1 team arrive on the scene, than an arrogant officer from Military Security (Major Brauer) takes the case away from them. But Dahlberg and his people aren't that easy to intimidate. Their curiosity has been aroused and they're determined to investigate on their own.
Their first lead takes them to Christoph Eisfeld, a former sergeant who was dishonourably discharged and has since been running a private parachuting school. Jenny takes on the job of spying on Eisfeld as well as his two buddies Nobel and Körner and the only woman in the group, Daniela. Jenny manages to make friends with Nobel but her search of Eisfeld's headquarters is a failure.
Meanwhile, Charly and Rubelli have managed to listen in on one of Eisfeld's cell phone conversations and now know that the handing over of the rockets is planned for the following day. They have no idea, however, that Eisfeld has found out that Jenny is a policewoman and has taken her hostage.While Körner and Nobel lure Dahlberg and Major Brauer on a false trail, Eisfeld carries through the deal on the Teufelsberg. Daniela is to pick him up there with a helicopter.
When Charly and Rubelli finally turn up where the exchange is to be made, they are greeted by a Stinger Rocket. In the meantime the escape helicopter is approaching. Daniela is at the controls and Jenny is with her. When Daniela sees that all is lost, she makes a final jump---but without a parachute. Jenny, however, manages to survive unscathed. Relieved that everything has gone so well, the AK1 team celebrates not only their success, but their proverbial good luck as well.