(uncredited)
A young gang member is found dead, and the Beck group's investigation indicates that a drug network is behind it. Klas Fredén has been monitoring the network for a long time, and the Beck group - led by Alex Beijer - is most graciously allowed to work with the murder investigation in parallel. She will soon end up on a collision course with Fredén. Thus, Martin Beck, who is now head of department, is also involved in the case.
(uncredited)
A man is beaten to death in the Middle East. In Stockholm, a young woman disappears on her way home from work. These two events will prove to be related. Since Martin Beck has quit, Steinar Hovland leads the search for the missing girl. But Martin is drawn into the case when he decides to help the national Security Police investigate a suspected terrorist. They soon realize that they are in a race against time to stop a catastrophe.
(uncredited)
The body of a young woman is found in a Stockholm hotel room. It appears that she has been strangled after a night partying with two young men, but the room was paid for using the credit card of a mugging victim whose alibi doesn't add up. Martin and Gunvald investigate under the supervision of their new boss Klas Freden.