Markus gets attacked by a likely environmental activist and hires the former police officer Erik Bäckström in the hope of tracing the perpetrator. The police cadet Peter, who is Erik's nephew, is also involved in the investigation.
When local mining contractor Markus is attacked by what is thought to be a militant environmentalist, he appeals to former police officer Erik for help in tracking down the perpetrator. Meanwhile, Erik's nephew Peter is a trainee police officer who is also involved in the investigation.