A model gets attacked by a hooded man. Hannes and Kevin get hired as her bodyguards and during their investigations they find out interesting insight news about their ward.
While watching an American football match Nesrin witnesses an argument between a player and a man in the audience. The "Cologne Crocodiles" also get attacked by unknown strangers - during the investigations Nesrin gets far too much involved.
While about 400 packages get lost around Christmas time the team tries to find the offender undercover not to know that there is a far worse explosive delivery they should keep an eye on.
After several armed assaults on gas stations there is no lead to the suspects. When the team also investigates a suicide in the military they discover a strange connection.
A man has to be held in an artificial coma while suffering from several cut wounds. The weapon seems to be some kind of épée and all clues point out to a fraternity.