Allegiance (1)
| Episode Number | 21 |
|---|---|
| Season | 5 |
| Aired | 2018-05-02 |
| Overview | Halstead and Atwater go under cover to prevent military-grade weapons from hitting the street; Voight calls in a favor to clear Olinsky's name for Bingham's murder. |
| Runtime | 40 minutes |
| Absolute Number | 105 |
| Finale Type |