Infection, Part I | [s8e4]

Firehouse 51's first responders must work alongside the medical team at Gaffney Chicago Medical Center to contain the outbreak while the Intelligence Unit from Chicago P.D. investigates if the infection was spread intentionally .

You can find this episode and the rest of the crossover on major streaming platforms and digital stores: [S8E4] Infection, Part I

is the fourth episode of Season 8 of the action-drama series Chicago Fire . It serves as the opening chapter of a massive three-part crossover event within the Chicago franchise, involving characters from Chicago Fire , Chicago Med , and Chicago P.D. . Crossover Viewing Order Firehouse 51's first responders must work alongside the

Watch the full series on Peacock or through Sky Go . involving characters from Chicago Fire