Lilly reopens a 1990 murder case, in which a prep-school girl was found dead in a local swimming hole, after a present-day victim with similar markings is discovered at the same place. The investigation reveals that the victim of the earlier crime was routinely tormented by a trio of classmates who invited her to a sleepover the night she was killed.

Rush and the team investigate the 1969 murder of a 19-year-old girl whose body was found in her boyfriend's apartment the day he fled to Canada to avoid fighting in Vietnam.

When an old truck containing human bones is pulled from the Delaware River, the team re-opens the case of a missing and possibly murdered girl who disappeared unexpectedly in 1932.

In 1954, 9-year-old Otis Petrowski last saw his mother in a mental institution. Now over 50 years later, after the death of an elderly woman who had been using Otis' mother's identity, Det. Rush sets out to discover what happened to the boy's real mother.

When a note connected to a supposed suicide is found, the team re-opens the 1994 case of a high-school kid who fell from the roof of the school building after having served detention. In 1994 the death was deemed a suicide, but the newly-found note indicates that the victim might have been fearing for his life.

Lilly re-opens the 1929 case of a woman found dead in a ravine on Christmas Day when the victim's great-granddaughter comes in asking for help. Meanwhile, Lilly's estranged mother shows up, hoping to re-connect with her daughter.

When the victim's credit card is suddenly used a year after his death, Lilly re-opens the 2005 case of a counselor at a teens' rehab center who was shot to death just two weeks before he was scheduled to testify in a murder case. During the probe, Lilly feels a strange connection to the victim, and her personal attachment may end up jeopardizing the case.

A 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.

A 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

When 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.

After a piece of clothing belonging to a murder victim is found, the team re-opens the 1998 case of a high school girl who had a reputation for being promiscuous.

The team re-opens the 1998 case of a murdered 17-year-old girl when her father is arrested for beating another child.

A drug addict mother, who lost her son in an apartment fire in 2005, comes forth claiming she just saw the same child in the park.