Episodes
1Rampage24 Sept 2006 · 45mLilly investigates a 1995 shooting spree at a mall in which two teen boys killed 15 people before committing suicide. The case is reopened when a video of the crimes is found and it suggests that a third shooter was involved. Elsewhere, Stillman asks Valens to investigate whether Valens' brother may have been molested by a boxing coach in the 1980s.
2The War at Home1 Oct 2006 · 43mThe team re-opens the 2004 case of a female veteran of the Iraqi War when her prosthetic arm is found in a river. Meanwhile, Scotty visits his older brother in connection with a case that brings up painful memories from their childhood.
3Sandhogs8 Oct 2006 · 45mWhen the remains of a sandhog miner who disappeared in 1947 are found in a subway service tunnel, the team is prompted to re-open the case when they suspect the victim might have been murdered for being a union activist.
4Baby Blues15 Oct 2006 · 45mA 6-month-old girl's 1982 death, originally ruled to be a result of sudden-infant-death syndrome, is investigated when new evidence reveals the baby may have drowned. Also, Lilly learns that Ray is in the hospital after apparently being beaten.
5Saving Sammy22 Oct 2006 · 44mLilly re-opens a 2003 case in which an autistic boy's parents were shot in their car when Joseph brings her information that the boy might have seen the killer.
6Static29 Oct 2006 · 45mThe apparent 1958 suicide of a popular rock-and-roll DJ is reinvestigated after a documentary filmmaker discovers a tape recording made at the time of the victim's death by gunshot at his radio station. Also, Valens tries to get his brother to testify against a suspected pedophile.
7The Key5 Nov 2006 · 44mThe 1979 murder of a schoolteacher who was stabbed to death in a wooded area is reopened when the victim's bloodstained jacket is found stuffed in a tree trunk with a happy-face key chain in a pocket. The case was originally investigated by Jeffries when he was a rookie detective.
8Fireflies12 Nov 2006 · 42mThe 1975 disappearance of an 8-year-old girl who was never found is reinvestigated after a note written by the girl shortly before she vanished turns up. Their friendship rattled many in the predominantly white neighborhood and the girls quickly became targets of hatred.
9Lonely Hearts19 Nov 2006 · 45mA homely 33-year-old woman is gunned down in an alley in 1989 and her unsolved murder is reinvestigated when a tape of the victim, made for a dating service, turns up in a suicide victim's apartment. Apparently, it was what the man was watching when he killed himself. Also, Vera moves into an apartment of his own
10Forever Blue3 Dec 2006 · 45mThe team re-investigates the 1968 death of a policeman who was shot in his patrol car. The case was then ruled as a drug bust gone bad, but new evidence now reveals the victim may have been romantically involved with his partner.
11The Red and the Blue10 Dec 2006 · 45mLilly and Valens travel to Nashville and Knoxville to investigate the 2000 murder of a country-music singer who was gunned down outside of a Philadelphia bar where he and his band had recently played. The unsolved case is reopened when the gun used in the homicide turns up.
12Knuckle Up7 Jan 2007 · 44mLilly investigates the murder of a 17-year-old prep-school student who disappeared in early 2006 and whose body is found stuffed in an oil drum outside an abandoned warehouse in a drug-infested part of the city. Also, Vera pays a parking ticket for his neighbor and later asks her out on a date.
13Blackout14 Jan 2007 · 44mLilly investigates the 1996 murder of a wealthy divorced woman who was found dead in her ex-husband's indoor swimming pool. The original investigation ruled the death accidental, but new evidence suggests it was a homicide.
148:03 AM28 Jan 2007 · 45mIn 2002, two kids were shot in front of two different schools on the same day at precisely 8:03 a.m. It's the fifth anniversary of the shootings, and Kat Miller wants to re-open the murders because she feels the cases are connected.
15Blood on the Tracks18 Feb 2007 · 45mLilly investigates the deaths of a married couple who perished in 1981 when a supposedly accidental gas-leak explosion set their house on fire. The case is reopened when fragments of a bomb are discovered at the house during renovations. Back at headquarters, Stillman takes care of his 4-year-old grandson.
16The Good-Bye Room4 Mar 2007 · 45mLilly investigates the 1964 murder of a 17-year-old girl who was sent by her parents to a home for unwed mothers, where she gave birth to a girl. The next day the teen was killed. The case is reopened when the victim's daughter comes forward, having just learned that she was adopted and that her biological mother was slain.
17Shuffle, Ball Change11 Mar 2007 · 45mWhen a body is found in a dumpster, the team re-opens the 1984 case of a murdered teenage boy who wanted to become a dancer against his father's wishes.
18A Dollar, A Dream18 Mar 2007 · 45mThe 1999 murder of a homeless woman, whose body is found at the bottom of a river in a station wagon, is investigated.
19Offender25 Mar 2007 · 43mA father pushes a registered sex offender off of a building and threatens to kill a different sex offender each day until the cold-case unit solves his son's 1987 rape and murder.
20Stand Up and Holler1 Apr 2007 · 42mThe 1997 murder of a 16-year-old girl high-school cheerleader is investigated after an anonymous confession is discovered in a modern-art exhibit.
21Torn8 Apr 2007 · 42mThe team re-investigates their oldest cold case yet, the 1919 murder of a young woman who was a passionate advocate for women's right to vote.
22Cargo15 Apr 2007 · 45mThe 2005 murder of a longshoreman who accidentally became involved in a human-trafficking ring run by the Russian mob.
23The Good Death29 Apr 2007 · 44mThe 1998 death of a terminally ill man who died months before he was expected to is investigated after a nurse confesses to six so-called mercy killings.
24Stalker6 May 2007 · 45mIn the fourth season finale, a hostage situation arises when the entire team is held captive while they're investigating the 2006 killings of a family who had just moved into a new house.