Summary Lisa Maria Potthoff has to save a Chinese billionaire in Hamburg. Her opponent: an ex-colleague (Sebastian Blomberg). The business senator wants to keep the incident small, but that's not so easy: First a remote-controlled toy boat with a load of dynamite explodes in the port of Hamburg, then a sniper fires. At the last second, Chief Commissioner Sarah Kohr rescues Chinese investor Chen and his daughter - Chen's security chief Stölzer seems completely overwhelmed. Sarah, on the other hand, already knows who is behind it: Henning Lanz, once her colleague in the personal protection of the LKA. But what drives Lanz? Should he prevent Chen's controversial construction project in the port on behalf of third parties? Or is it personal?

• Crime