After an absence from work due to her shooting. Lily returns to work and investigates the 1994 case of three murdered children.

The 1998 case of a girl who was found murdered is reopened after an article of her clothing is discovered.

The 2006 murder of an Amish teen who left home to visit Philadelphia as part of rumspringa, an Amish rite of passage, is reinvestigated when the victim’s sister arrives to look for her.

The unsolved 1953 murder of an aspiring 19-year-old rock-and-roll singer is re-investigated after new evidence indicates he was killed in his uncle’s five-and-dime store and not in an alley behind a blues club where his body was found.

An unidentified woman who has been in a coma since she was shot in 1989, dies. Her unsolved case is reinvestigated and it’s learned that she was a grifter who had a male partner and many vengeful victims.

The 2002 unsolved murder of a 14-year-old inner-city math genius is re-investigated. The victim was shot after his 16-year-old half brother exploited the boy's abilities, such as counting cards and opening safes, for illegal gain with a local gang.

The murder of a woman who vanished in 1938 during Orson Welles' a War of the Worldsa radio broadcast is investigated when her body turns up in a well. The probe reveals the victim's family prepared to outrun the aliens they believed were invading the U.S.

A set of storage units, both owned by the same person, holds the missing bodies of three boys who had disappeared between 1999 and 2003. Additionally, another unit holds the body of a newly missing boy.

Was a 1963 death of a teenage girl, who dressed and acted like a male, a murder or possibly a suicide. Meanwhile, Valens Internal Affairs probe results are revealed.

The 1982 murder of a popular college student is reinvestigated after a rapista is written on the dead man’s gravestone. The probe reveals the victim was accused of date-rape by several former students before he was fatally shot, but their initial complaints were ignored by the police and the college-administration staff.

The investigation of a murdered Japanese-American man who had moved his family to Philadelphia after their release from an internment camp in 1945. Also, Lily tries to get Stillman to change his mind about retiring.

After five years of silence a serial bomber strikes again and the team rushes to stop his killing spree.

After a drunken father is arrested for beating up his 3-year old daughter, a murder case of a 17 year old from 1998 is reopened. Although the dad is shown as having abused her, it is also revealed that she ran away from home with a neo-nazi, ex con just before she died.

Th body of a deaf teen, thought missing since 2006 is believed to have been murdered after blood droplets is found in a storage shed at the school for the deaf he had attended.

A suspected murderer is escorted back from West Virginia to Philadelphia by Lily and Valens. The man is suspected of having abducted and killed a woman who was attending her own engagement party.

A drug bust uncovers a severed hand belonging to an ex-con who was murdered in 1997. The drug dealer claims he found the dead body and removed his hand to sell his fingerprints, and later dumped his body.

New evidence is brought in by the granddaughter of a woman who was thought of having committed suicide back in 1962, leaning the case towards a possible murder.

A former drug addict claims to have seen her son playing in a park, although he was reported as having perished in an apartment fire three years earlier.