The Forgotten squad looks for the killer of an 8 year old girl (who died five years ago), and has to match their wits against a multiple child murderer who likes to leave clues in the form of puzzles...

A John Doe is found shot to death in a drainage tunnel; clues point toward the victim having been searching for someone; Alex starts to see his own story reflected in the victim's.

The Forgotten Network looks the death of a John Doe found buried at a local vacation spot. They find that the only clue is a stray dog standing over his owner's grave.

Gunfire outside a charity event kills a woman and injures others, including a person (Aisha Tyler) from Alex's past.

A John Doe found murdered and stuffed inside a seepage pit takes the team into the world of medical trials. The team learns that the Doe was a recently naturalized citizen who needed to supplement his income by becoming a medical guinea pig in order to bring his family to America. But did one of these trials end up killing the Doe? Who covered it up? And are there any other victims?

When a female skull is discovered near a railroad track, the Forgotten Network learns Jane Doe's only remaining relative, her comatose sister, could also be in danger.

The Forgotten Network takes the case of a Jane Doe found strangled in a warehouse. The investigation leads the team to man who might have been falsely imprisoned for her murder.

A mysterious young man knocks on The Forgotten Network's door with a most unusual request -- 'help me find my identity.' After a violent assault put him in a coma, John Doe has no recollection of who he is. During the investigation, the team tracks the Doe's past to a world of crime, where a member of their team is nearly killed. But who is John Doe? Why hasn't anyone come forward to identify him? And was it this dangerous lifestyle that led to John Doe's assault.

When a young man falls to his death from atop a skyscraper, the Forgotten Network takes on the near impossible task of identifying him. Their efforts lead them into the world of "Parkour" or free running, where they learn John Doe may have recently returned to America after an extended stay abroad. The case takes an unusual twist when two separate individuals come forward, each claiming the Doe as their own. But which one is really his relative? What brought John Doe back to America? And was it a dangerous Parkour act that got him killed or something more sinister?

The Forgotten Network takes the case of a Jane Doe who was found strangled and dumped in an alley six weeks previously. The only link to the investigation is an engagement ring.

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The Forgotten Network investigates a Jane Doe who appears to have died from an insulin overdose, but further developments lead the team to suspect foul play. If someone wanted her dead, what was the reason? Where is her family? And what is her name? The answers to these questions lead the team into the mysterious world of 'parachute kids'.

Walter brings The Forgotten Network their first case involving multiple victims, a male and female Doe shot to death and buried in the snow outside a sleazy motel. The age difference and the large amount of cash found on them suggest something nefarious. But did the victims actually know each other? What was the money for? And why did the murderer leave it behind.

When a city train derails, there are dozens of injuries and several bodies found in the wreckage. But one of the female victims remains unidentified. The Forgotten Network follows her journey, which leads them to a secret society of roving nightclubs. Was Jane Doe killed in the crash, or is someone using a city's tragedy to cover up an even deeper mystery that led to her death.

The Forgotten Network sets out to ID a 40-year-old woman found murdered in a local bar. One of the primary suspects is a superstar basketball player (guest star Baron Davis, LA Clippers), who had an altercation with Jane Doe days before. As the team follows several leads, they learn that Jane Doe had paid to adopt a baby right before she died. But if that's what led to her death, what happened to all the money? Where is the baby? And who was willing to kill her for it.

Volunteer members of the Forgotten Network, Alex Donovan, Candace Butler, Lindsey Drake, Walter Bailey, Tyler Davies and Det. Grace Russell, work together to solve the case of "Highway Jane," who had been murdered and her body dumped in the woods.

When a John Doe is found killed and stuffed in the trunk of a car, The Forgotten Network investigates the case four months afterwards. But when a DNA test identifies the Doe as an ex-con that died four years earlier, the investigation takes an odd turn.