Cold Case (season 1)

Detective Lilly Rush from Philadelphia Homicide force is transferred to the Cold Case Unit, where she reopens a 1976 murder case involving two wealthy families when the former housekeeper, who is now old and dying of cancer, comes forward claiming to have witnessed the murder of a young teenage girl who was found dead near a slumber party hosted by her two wealthy brothers.

The team reinvestigates a 1983 murder in which a young mother was killed in an explosion in her own house, shortly before she was to testify in court against a man who indecently exposed himself to her in public.

When a serial rapist sends a intimidating letter to the Cold Case squad announcing his return to Philadelphia after five years of absence, the team reinvestigates the 1998 murder of a college student who was believed to be one of his former victims.

The team reinvestigates the 1990 case of a murdered church organist, when his Alzheimer's-stricken widow begins having constant flashbacks of the night when he was murdered.

After a drug addict brings in an audio tape in which a fatal shooting is heard, the team reopens a 1973 case involving the unsolved death of a young police officer murdered after responding to a call at a drug-infested housing project.

A petty thief hoping to get a reduced sentence comes forward claiming to have seen a young man washing blood out of his car on the same night in 1981 that a high school track runner was murdered.

A 75-year-old woman asks Lilly to reinvestigate the unsolved murder of her son, a former college baseball player, who was beaten to death outside of a flamboyant bar in 1964 after it was discovered that he was homosexual.

• Song features in the intro: "The Shoop Shoop Song (It's in His Kiss)", by Betty Everett
• Song featured in the finale: "Turn! Turn! Turn!", by The Byrds.

After a young woman suddenly wakes up from a 2-year coma and doesn't remember anything about her daughter's death back in 2001, Lilly and the squad must determine if the girl's mother was the killer, or someone else was involved.

When Lily gets an anonymous phone call from a man who claims to have killed an elderly woman in 1989 and buried her body in the basement of a house, the team investigates the murder of a grandmother who lived with her grandson, an orphan, and disliked his lifestyle.

When new evidence is uncovered that links a current case to an unsolved murder from 1997, the team reopens the case of a hitchhiker who was killed on his way back to Philadelphia after winning a large sum of money at a casino in Atlantic City.

A college professor, whose career ended in disgrace after being suspected of murdering one of his female students in 1995, asks the detectives to reopen the case, hoping to clear his name when another young woman is killed in an identical fashion as the first victim.

Det. Stillman asks Lilly to reinvestigate one of his first cases as a homicide detective, the unsolved murder of an 8-year-old boy who was knocked out and left for dead in a snow drift in 1980, after his jacket is found in a hollow tree.

After a young woman comes forward with new information about the death of her grandmother, Lilly and the squad reopen the unsolved murder of the 25-year-old woman in 1939 and discover racial tensions and a secret romance connected to the woman.

The team reopens the case of an unidentified six-year-old boy, whose body was found in a cardboard box in a field outside Philadelphia in 1958 and discover that he may have been part of U.S Government approved radiation experiments on orphans.

The team reinvestigates the circumstances of a fire that killed 22 people and destroyed a disco nightclub in 1978 when a new set of remains with a bullet hole in the skull is discovered by construction workers redeveloping the site, suggesting the fire may have been set to cover a murder.

Human remains found during a building demolition lead the team to investigate the unsolved deaths of two hippies, a white woman and a black man, who disappeared in 1969, who were a part of a group that performs secret abortions on pregnant girls.

When a high school basketball phenom receives death threats over the phone, the team reopens the 1987 murder of his father, another star player, who was found stabbed to death hours after leading his team to win the State Championship.

The team reinvestigates a 1999 case involving the death of a man who was killed in a hit-and-run accident on New Year's Eve after a recovering alcoholic comes forward as the possible culprit, but the investigation reveals that the victim may have been poisoned before he was run over.

Suspicious evidence found at the scene of a current murder leads the team to reopen the case of a young, politically-involved woman who was killed on the night of the 1992 presidential election.

The team reopens the 1985 murder of a wealthy stockbroker killed during an apparent carjacking gone wrong, and uncover evidence that the victim may have been cheating his cilents.

When a juvenile delinquent claims to remember witnessing his mother's death, the team reinvestigates the 1989 murder of the young single mother, who turns out not to be who everyone thought she was.

The 1999 drowning death of a military academy's strict swim coach is reopened after the homicide division receives a note that suggests he was murdered, and eventually learn that the victim was a pedophile who preyed upon his weaker students.

When DNA evidence reveals a man was wrongfully convicted of murder, the team reopens the 1986 case of a teenybopper 15-year-old girl who was raped and killed during a date at a popular lover's lane.