Cindy Chang

An arsonist targets Lt. Severide. Meanwhile, Station 51 is under scrutiny by Gail McLeod, a financial consultant for the city who is deciding if any firehouses should be closed. Mouch receives a visit from his Japanese girlfriend, Lt. Casey "celebrates the one-year anniversary of Andy's death, and Shay suspects Severide's paternity.

When a call comes in from the Cook County jail, the squad steps into a volatile predicament and are tasked with trying to defuse an escalating situation. Shay (Lauren German) remains hopeful about her baby dreams and Hermann’s (David Eigenberg) wife Cindy (guest star Robyn Coffin) goes into labor with their fifth child. Meanwhile, Mills (Charlie Barnett) and Dawson (Monica Raymund) face key decisions in their personal lives. Taylor Kinney, Jesse Spencer and Eamonn Walker also star.

Stabler and Officer Bashir track down a missing father and son who could lead to the answers they need. After an undercover operation goes sideways, Bell relegates Reyes to desk duty.