Der Bulle & das Mädchen (1985)

The 'Bulle' is a real tough cop. When he helps a girl being harassed by rockers she steals his car and gun in return. Wanting his stuff back, 'Bulle' follows the girl to the frontier of Holland where she gets caught by German border policemen. The 'Bulle' knocks out the policemen in order to get his gun back having to take the girl, too, as she threatens to be a witness. Thus both are being chased making up a strange friendship.