A group of criminals plans to sell weapons to an undercover policeman, while Johan Falk's team and Frank Wagner are watching the operation. However, the gang leader Rydell changes his mind and sells to a new buyer, a Serbian mercenary, who demands more serious equipment, including an automated grenade launcher.
Johan Falk: Vapenbröder
A tense standoff unfolds as a group of criminals, led by Rydell, attempt to sell weapons to an undercover policeman, while Johan Falk's team and Frank Wagner secretly monitor the operation.