Part of a massive three-way crossover with Fire and Justice centering on the warehouse fire that killed Olinsky’s daughter.
The season introduces Lieutenant Denny Woods (Mykelti Williamson), Voight’s former partner turned rival, who begins a long-term campaign to take Voight down for past misconduct. 📺 Crossovers and Special Episodes Chicago P.D. - Season 4
Midway through the season (Episode 8), Antonio leaves the Intelligence Unit to join the State’s Attorney’s office as a chief investigator, a move designed to lead into the spin-off Chicago Justice . Part of a massive three-way crossover with Fire
In the season finale, Lindsay resigns from the Chicago Police Department to accept a position with the FBI in New York after being investigated for her conduct during an assault on a suspect. Off-screen, Bush cited abusive behavior and harsh working conditions as her reasons for leaving. In the season finale, Lindsay resigns from the