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.

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.