LKA investigator Helen Dorn (Anna Loos) is sent undercover to infiltrate the motorcycle school of Mo Tudor (Hanno Koffler) in order to make contact with him and his circle. A week earlier, a robbery took place on a money transport, during which the security guard was killed. DNA traces at the crime scene lead to Mo's brother Lucca (Doğa Gürer). Helen discovers that the robbery was just the beginning; drug deals and assassinations are supposed to follow. Helen's risky operation seems to be working – until Mo learns the truth about her identity.