Retired judge Hardcastle recruits ex-con McCormick to team up with him in tracking down the guilty cases that slipped through the courts on technicalities. First on the docket: Martin Cody, the man who murdered McCormick's friend Flip.
A mobster writes a book and in it he says some things about some people that are not nice. And among them is Hardcastle, who wants to get him. And his former associates are not pleased with it too and when they bring him to them and threaten him, he counters by saying he has records of everything they have done, so he tells them to back off. After he leaves, they meet with a fixer whom they've hired to get the records he has and kill him. While trying to get the records to a safe location, Hardcastle runs into him, literally, so Hardcastle wants to see what he has in ...
McCormick's former cell mate who's on parole is informed by his parole officer that because of a violation which wasn't his fault, he could be sent back to prison. That's when the parole officer tells him there's a way out--that he should pay him $1000 a week, and he doesn't care how he gets it. When McCormick and Hardcastle go to play cards with some other judges, the guy robs them and McCormick knows he did it. Later McCormick tells Hardcastle about his friend and that he has been staying with him. When they go home they discover that they've been robbed. McCormick ...
A convict escapes from prison and takes the warden's wife with him but is she his hostage or accomplice. He then calls Hardcastle, who's shocked to hear from him. He then goes after him with McCormick, but without telling him how he knows the man and what is he after.
When several men some of whom work for criminals turn up dead and they all appear to have dated the same woman. So Hardcastle looks into it but a Captain who doesn't like Hardcastle tells him to stay away. So Hardcastle has McCormick come on to her. Hardcastle eventually learns that McCormick is in danger.
A boxer whom McCormick knows, is training for the Olympics. But a criminal is pressuring him to turn pro which would make him ineligible for the Olympics. So along with Hardcastle they try to help him.
DA Pamela Peterson asks her long time friend Judge Hardcastle to help her finally put away loan shark, Frank Kelly after he once again beats legal charges after kidnapping the wife of the prosecutions key witness.
Hardcastle enlists his old friend Buddy Ebsen to help him infiltrate the film set of one of film producer Eddie Sands' productions. Whom he suspects is using his stunt drivers to smuggle drugs in from Mexico.