Benson and Voight lead their teams in the investigation of a rape/murder case that is frighteningly similar to a case from New York a decade ago. When forced to release their main suspect, the Chicago PD joins the SV Unit in New York in pursuit of Ya... (more)tes. (We Called Her Jellybean (1) aired on Chicago Fire, season 3, episode 21. The Number of Rats (2) aired on Chicago P.D., season 2, episode 20.)