[s8e4] Infection, Part I -

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 .

Chicago Fire Season 8, Episode 4 – "Infection, Part I" . [S8E4] Infection, Part I

As panic grows, the city's heroes face a race against time to identify the source of the bacteria before it becomes a full-blown epidemic. Where to Watch Firehouse 51's first responders must work alongside the

Chicago Med Season 5, Episode 4 – "Infection, Part II" . As panic grows, the city's heroes face a

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

Because this episode is part of a continuous storyline, you must watch the following episodes in order to see the full narrative:

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