Mia and her partner Benny, along with Mia's sister, Alicia, will be in charge of solving some puzzling cases that are happening in their city Hamburg. Surrounded by ghosts and mysterious characters this group of friends, accompanied by other young people, follow their clues.

As soon as Jaswinder, the mother of Alice's friend Tarun, discovered a way to avoid plastic, it is attacked and the documents about it, which are also top secret, stolen. Shortly thereafter, it also disappears without a trace. Alice, as the remaining peppercorn, searches for clues and comes across toxic waste companies who want to prevent the documents from being published at all costs. Will you take Alice to Jaswinder ...?