Characters Jay Halstead, Erin Lindsay, Antonio Dawson, Hank Voight, Adam Ruzek, Will Halstead, Natalie Manning, Kate Halstead Detective Logan Jones Detective Michelle Ross Detective Ethan Nelson Detective Joseph Spencer Sergeant Brian Larson

Sophie halstead had been missing since she was 15. Her brother jay halstead was the last one to see her alive. Sophie was the reason jay became a cop. Everyone eventually gave up looking for her until one case leads jay to his long lost sister but everything is not what it seems.

Alison Severide is the twin sister of Kelly Severide. Being a firefighter is in their blood. And being a female firefighter hasn't been easy. Once they became friends with the police department Alison instantly fell for Detective Jay Halstead. They had a connection but there was only one thing, Jay is engaged.

It was by chance that Evelyn became a police officer. That was simply because her aunt is a sergeant and she liked the sound of it. However, it wasn't chance that she became part of intelligence and had a connection with the one and only Jay Halstead. Only time will tell if all the pieces fit into place.

A girl goes to the police academy of Chicago against her parents wishes and meets jay Halstead. From Chicago pd. on NBC.