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Chicago PD Wiki
The Number of Rats
Season 2, Episode 20
The Number of Rats 1.jpg
Vital Statistics
Airdate April 29, 2015
Written by Story by: Matt Olmstead & Warren Leight

Teleplay by: Matt Olmstead & Cole Maliska

Directed by Nick Gomez
Episode Guide
The Three Gs
There's My Girl

The Number of Rats is the twentieth episode of the second season, the 35th overall episode of Chicago P.D. and the second part of a crossover. This episode is part of a three part crossover between Chicago Fire (We Called Her JellyBean), Chicago P.D. (The Number of Rats) and Law & Order: Special Victims Unit (Daydream Believer).


Olivia Benson (Law & Order: Special Victims Unit) has come to 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.


Main Cast

Crossover Cast

Recurring Cast

Notes and Trivia



Chicago PD 2x20 Promo The Number of Rats HD