When a distraught father, who was just released after serving a 30 year prison sentence, brings Rush a newly discovered photo of his then seventeen year old daughter shortly before she was found murdered in 1976 and a mysterious, faceless biker with the notorious "Jackals" street gang symbol on his jacket; Rush and the team are compelled to reopen the case and piece together the previously known honor students last days. The photo was placed into the father's belongings while he was in prison by someone who wanted him to find it the day he was released. The team knows that they must find the mystery biker and the individual inside the prison that planted that photo for the father to find or they may never be able to solve the case. During the investigation they discover that after her father went to prison she thought she found a home and excitement in her new life by involving herself with this notorious gang. She was a smart girl but some within the gang thought maybe too smart and believed the leader of the "Jackals" was moving her up the ranks too quickly without having to pay her dues. She soon discovered that there was a price to pay for becoming one of them but when she finally wanted out, she looked to the only friend within the gang she thought would protect her; ultimately, he was the one that stood by while she was murdered.