All Hard Parts
| Episode Number | 14 |
|---|---|
| Season | 4 |
| Aired | 2016-02-09 |
| Overview | Severide confronts Chili about her erratic behavior. Members of the firehouse rally around Casey, who they think would make a great candidate for alderman. Jimmy squares off against Antonio in the first annual "Battle of the Badges" boxing match. |
| Runtime | 41 minutes |
| Absolute Number | 83 |
| Finale Type |