Crossroads to Crime is about the investigations of a police constable (Anthony Oliver) who, working undercover without support from his colleagues, confronts and brings down a gang of vehicle hi-jackers.
Police hunt for mental hospital out patient Simon Lacey, who has been unwittingly handing out barbiturates to children as sweets.
A Scottish fishing trawler hauls in an unexploded depth charge and a bomb disposal veteran teams up with an inexperienced volunteer to try to defuse is before it destroys the ship.