The dare-devil detectives become involved in the wild world of professional wrestling when they visit Mac Johnson, a retired colleague, now a promoter in the sport, who has some information for them about a recent suspicious accident in which a man was killed.

The Detective pair are determined to nail the wealthy Amboy, a crafty narcotics dealer who is supplying young prostitutes, and always avoids Police arrest with legal loop-holes...

Starsky's younger brother Nick arrives in the city to visit to his elder sibling. But the older Starsky soon has cause for concern that Nick is mixed up in criminal activities, when he is spotted entering a restaurant at the centre of a Federal stake-out that's trying to nail a counterfeiting scam...