- Season 5 Episode 18
Upton (Tracy Spiridakos) brings back an old undercover identity to help take down a meth ring spearheaded by a former criminal contact. And with pressure from Woods (guest star Mykelti Williamson) mounting, Voight (Jason Beghe) calls in a favor for Olinksy (Elias Koteas).
Promo Video #1
See more at Chicago PD Season 5 Episode 18 "Ghosts" Promo