"Großstadtrevier" is a series about a police station in Hamburg. This episode begins with rioters being brought in for questioning, one of whom knows Nicki.

Politician Frauke Claassen comes to the station and it turns out that there is another coincidence related to the two protesters.

While Lisa drops Emma off at a birthday party, Nico waits in the car and hears something interesting on the radio.

Lothar and Henning find there is a common link in the issues with their bank cards, while another scene erupts between Frauke Claassen, her daughter, and Torben Witt.

Nico has the bold idea to call a radio station and tell them about his missing bag.

Henning and Harry visit Ina Grote's shop and meet a suspicious employee. Frauke Claassen requests that the security detail at her house be removed.

Nico and Lisa go to the police station, where her father files the little information Nico can give him.

Piggeldy and Frederick go hiking, which doesn't appeal to Piggeldy at all until Frederick starts a sing-a-long.

Harry, Henning, and Lothar find Onno Wulf's criminal record and warn Ina Grote. Harry finds out that Lothar is going to the training program, and confronts Dirk, who finds yet another excuse.

Nico goes to the "Wohngemeinschaft" ("WG") where Lisa lives and meets her housemates, who are getting ready for a party.

Piggeldy tries to learn how to drive, but something doesn't seem to be working out quite right...

Frauke Claassen is certain that Torben set her car on fire, and the evidence also seems to point to him. Meanwhile, it becomes clear that Onno Wulf has been tampering with the card reader in Ina Grote's shop.

When Nico shows Nina and Sebastian the photo of his aunt, Sebastian has the idea to post the photo online and see if anyone recognizes the bicycle shop.

Frederick tells Piggeldy that he can fly down a mountain by flapping his ears.

The police doubt the credibility of the evidence against Torben Witt and continue to watch over the Claassen residence. Meanwhile, Ina Grote helps with the arrest of Onno Wulf.