A mummified body discovered in a derelict airplane in an Arizona scrapyard after seven years has mutilations that match those from another body found in a water tower.
The cold case mutilation murders of two Indians, a recent prison suicide, Zorarosterism, and a seven year old robbery at Heathrow Airport are all linked to the manufacture of counterfeit drugs and a shadowy international pharmaceutical cartel, which tries to recruit Boyd as a covert operative.
Boyd and the team discover that two decomposed bodies -- one a suicide and the other a murder victim -- are linked to the same man, a medical researcher.
Thirty years after Grace Foley helped send Tony Green to prison for the murder of young men, a copycat tries to force her to recant her stand on the case.
The interrogation sessions of the desperate drug addict who snatched Grace's purse and a lovesick ex-con help lead Boyd and his team to the kidnapper/torturer of a young man.
The team's convinced that a non-violent criminal about to be released from prison is responsible for a series of attacks/murders of women, but can they prove it?
A murder case that Spencer worked on whilst at the Atomic Energy Constabulary is under review. DNA evidence that's been untestable until now looks set to reveal the murderer of two anti nuclear campaigners in the 1980s. It turns out not to be the man convicted of their deaths twenty years earlier. Meanwhile, someone inside the team is making every effort to destroy the new evidence. And all the signs are that it is Spencer himself. But events take a bizarre turn when a package for Spencer turns out to be a gas bomb which misses its intended target and renders Felix unconscious. The anti-terrorist squad puts the Cold Case team's HQ under lockdown and the team are kept quarantined until the substance that knocked out Felix can be identified. Spencer goes to apprehend the man who left his DNA at the campaigners' murder scene but is shot at and loses contact with Boyd. Boyd realizes that his investigation is being thwarted by a very powerful insider who has managed to render his team powerless. The race against time is on as Boyd seeks to get out of the sealed base to save Spencer. As Spencer's life hangs in the balance, will he survive?