Die Vierde Kabinet revolves around corruption in the police and the Organised Crime Unit, the hated internal investigation unit of the police who set traps for and spy on other police units to try and uncover corrupt members.
The same corrupt police attempt to turn the tables by trying to find information about who is in this specialised unit.
In 1993, shortly before the first democratic election in South Africa, a group of policemen rushed to get rid of files containing information about illegal police operations.
The files were placed in filing cabinets, taken to a secret place and destroyed with explosives. But in the atmosphere of panic and disorder a cabinet - the so-called "fourth cabinet" - got lost and was forgotten.
In 1997, Bonnie Badenhorst (Vanessa Pike), a policewoman attached to the special police unit investigating corruption, discovers the cabinet. Badenhorst, whose brother died in Angola, decides to remove the cabinet and hide it without informing her colleagues.
Detectives Peter van Opperdoes and Jacob Holm – both working out of the Raampoort police station in Amsterdam’s Jordaan district – solve a series of gruesome murders.
Barrister Lucas Hellier goes to Germany to defend a British officer accused of spying and disloyalty. Within a short time, he finds himself romantically linked to the Court Officer Annika Newman and involved in a series of astonishing and bizarre intrigues.
One night, Manda Ginjiro a moneylender in the Minami district of Osaka, hears a gunshot echoing in an alleyway. The shooter is Yojiro Todoroki , one of Ginjiro's clients. Todoroki entrusts Ginjiro with his notebook, which he has been holding onto with great care, and runs out of steam. From that day on, a suspicious shadow begins to haunt Ginjiro. According to Hideo Sawaki, a bigwig in Minami, an organization is trying to kill Ginjiro.
After examining evidence both old and new, the team questions O.J.’s role in the crimes. Was he involved in these murders…or was another person was responsible? Dr. Henry Lee, a forensics expert from the original investigation, discusses the confounding details and problems with the preliminary evidence collection from the crime scene, and what impact that may have had on the trial.
This thriller series follows two detectives, Gunnar (Ólafur Darri Ólafsson) and Hinrik (Gísli Örn Garðarsson),as they attempt to track down a serial killer who has a penchant for murdering goose hunters.
Thomas Becker (Matthias Koeberlin), son of a powerful building contractor (Heiner Lauterbach), is shot on New Year's Day. Commissioner Barbara Falck (Sabine Winterfeldt) and colleague Christian Krämer (Wolf Danny Homann) start the investigation and suspect a connection with the collapse of the "cube", in which a young cleaner was killed. Was the murder of Thomas an act of revenge against the Becker and Sons company?