Hanako Greensmith

Following the subway tunnel collapse, Ruzek and Kidd treat injured passengers and track down the missing offender. Archer and Frost perform a life-saving amputation. Lenox feels the weight of the CPD's hopes as she fights to save one of their own.

Goodwin is tasked with enforcing difficult cuts to hospital personnel. Charles' daughter is hospitalized after a car accident. A transplant patient makes a life-changing decision.

The firehouse reacts to some exciting news; a mysterious stranger arrives, and a shocking call takes Severide's breath away.

Severide and Casey try to find the best fit for Kidd; Ritter, Gallo and Violet help plan an event for Mouch.

A fire breaks out at a pet food factory, and Casey and Severide help the owner, Pete, get to the bottom of it; the annual garage sale takes place at 51 and everyone is on edge.

A mysterious caller who is in danger relies on Kidd to help save her and her brother; the firehouse helps Cruz get ready for fatherhood.