The past begins catching up as copycat crimes convinces Superintendent Mullet that Frost's life is in danger.
Frost joins forces with Christine Moorhead during a raid on a dogfight in which a boy is killed.
Jack Frost investigates three naked male bodies forming a triangle; a businessman smears the owner of a youth club in order to get the property.
Frost is called when a Denton bus driver and conductor are kidnapped; series of credit card thefts.
An unsolved case is reopened when remains are found; a suspected killer is released from prison.
Frost is called to investigate when a couple returns from holiday to find the body of a complete stranger in their bed. He also uncovers a crime ring involved in the importation of endangered species.
Sergeant Toolan is seriously injured as he and Frost try to prevent a young man's suicide attempt. A ritualistic murder echoes a previous case -- and when another woman is murdered, it seems as if it's a direct challenge to Frost.
Frost joins a gym; a body is found at a recycling plant; business man is caught in an embarrassing situation.
A man's body is found in Denton canal, and Frost unravels a series of crimes involving blackmail.
Jack investigates the disappearance of a young boy at Denton Football club.
When a security guard is killed at Denton Quarry, Frost discovers the only witness is a young man who claims the killers were aliens from outer space.
A witness to an underworld slaying disappears before she can testify, and Frost tries to find her before a hit man kills her.
Frost connects two previous deaths to his current case.
Frost has issues with his new partner.
Reid learns the identity of the assailant impersonating Frost, and the knowledge may cost both their lives.
Frost goes too far interrogating a drug dealer, then a discovery in the trunk of a stolen car changes the probe's direction.
An old adversary of Frost's (David Jason) becomes a suspect in an attempted armed robbery of a brewery. With Philip Jackson, Paul Brightwell and Peter Egan.
The second body is that of a health inspector who was investigating a meat-processing plant.
Frost links Wallace's case to an earlier unsolved killing.
Barnard helps Frost solve the domestic cases but at a terrible cost.
While investigating a woman's death, Frost is led to believe that the husband was responsible, until a priest reveals a man's confession to him.
Frost continues his probe into two brutal murders.
Frost investigates a kidnapping after finding a child's body but is disturbed when he catches the suspect and has no evidence.
Frost loses a confrontation with the shrewd lawyer for two suspects in a vicious knife attack and is eventually forced to release them.
Frost goes into the sex industry to probe a series of murders.
The murder of a young physiotherapist shatters any illusions Frost's new city-slicker partner may have had about country life.
Frost ties the death of a young soldier to a gun-smuggling ring and a local drug dealer. With David Jason.
Frost tries to determine whether his sister's kidnapper is her new boyfriend or the mysterious Task Force.
When masked thieves steal a factory payroll, Frost suspects it was an inside job.
The driver's license found on a corpse has no connection to the body.
The hunt-club murder may have been a case of mistaken identity.
Frost narrows the murder investigation down to some boys who have been out joy-riding and terrorizing the neighborhood.
Frost pursues a serial rapist by using a young female officer as a lure.
Ben's roommate helps Frost connect Dr. Patterson to the crime.
Frost learns the victims of the seniors club were driven to and from the club.
Frost learns the identity of Natalie's son and believes he has found the murderer.
The automobile in a hit-and-run accident is traced to a powerful member of Parliament. David Jason stars.
A girl disappears while delivering newspapers; a couple gets menacing phone calls.
Frost investigates a severed arm handcuffed to an empty security box.