
Season 5, episode 21
Allegiance
- 45 min
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.

Season 5, episode 21
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.