| Episode | Description |
|---|---|
| LIFE SENTENCE (PART I & II) | The Cold Case team is forced to enlist the help of a psychotic serial killer named Thomas Rice, AKA "the Gambler" The team look again at the Gambler's crimes, prompted by Boyd's unshakeable belief that Rice had claimed other, hitherto undiscovered victims |
| DEATHWATCH (PART I & II) | Boyd and the team take on the task of infiltrating the dark underworld of London's gangland crime families when Harry Newman makes a deathbed confession to 12 "unauthorized killings". |
| SPECIAL RELATIONSHIP (PART I & II) | team struggle to find the truth behind the murder of a prominent Home Office adviser, when a petty criminal is acquitted of the crime Boyd's progress on the case is hampered not only by a Home Office audit, which means the team will be shadowed throughout | THIN AIR (PART I & II) | Twelve years after Joanna Gold famously disappeared in broad daylight on Hampstead Heath, the dress she was wearing is found in a lock-up. The team begins the hunt for her killer |