[s8e4] Infection, Part I May 2026

You can find this episode and the rest of the crossover on major streaming platforms and digital stores:

A rare but deadly "flesh-eating" bacteria begins spreading rapidly across the city .

Individual episodes are available for purchase on Apple TV and Amazon Prime Video . [S8E4] Infection, Part I

Watch the full series on Peacock or through Sky Go .

Chicago Fire Season 8, Episode 4 – "Infection, Part I" . You can find this episode and the rest

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 .

Because this episode is part of a continuous storyline, you must watch the following episodes in order to see the full narrative: Chicago Fire Season 8, Episode 4 – "Infection, Part I"

Chicago P.D. Season 7, Episode 4 – "Infection, Part III". Episode Overview