Bremen in a state of emergency, the inspectors Inga Lürsen (Sabine Postel) and Stedefreund (Oliver Mommsen) are under high pressure: A group led by environmental activist Luisa Christensen (Friederike Becht) threatens to terrorize the city. She demands a confession from the scientist Dr. Urs Render (Manfred Zapatka) on his research for a biotechnology company, but Render is silent. The blackmailers are ready for the worst, the hastily convened crisis management team headed by Helmut Lorentz (Barnaby Metschurat) and commissioner Joost Brauer (Werner Wölbern) fears the worst. Does the idiosyncratic BKA colleague Linda Selb (Luise Wolfram) help Inga Lürsen and Stedefreund in the race against time?