Chicago PD Season 2 Episode 20 – The Number of Rats at Couchtuner
Benson has traveled into Chicago to help Voight and intelligence with a rape/murder case that is frighteningly similar to a case from New York a decade ago. She calls in Fin and Amaro to assist. The prime suspect, Yates is let go after rigorous questioning.
Watch it here : Chicago PD Season 2 Episode 20