An environmental activist is shot and his friend Henrik Paulsen (Helmut Zierl) disappears on a wind turbine in the North Sea. The Bremen commissioners Inga Lürsen (Sabine Postel) and Stedefreund (Oliver Mommsen) investigate in the middle of a conflict of interest between environmentalists and entrepreneurs. Does wind farm operator Lars Overbeck (Thomas Heinze) have anything to do with it? Does he want to silence his critics? The more the detectives find out, the more blurred the lines between victims and perpetrators, between innocent and guilty.