Mannion and the team reopen a 17-year-old cold case when a girl is found murdered in the streets of D.C. ""Jupiter,"" a serial killer that was never caught, appears to have re-emerged.

Mannion gets involved in a local murder investigation when he travels to a small town to fight a warrant for his arrest for a traffic violation. Meanwhile Temple and Debreno look into the disappearance of an armored truck owned by the company the Temple works for part time.