KGPX-DT A rare but deadly bacteria takes its toll on numerous victims around the city, leaving Chicago's finest first responders to work together alongside the CDC to resolve the dangerous situation; Severide suspects something bigger is happening. 2026-05-05 Kidd must prove herself at the National Firefighter Leadership Conference, while the rest of Firehouse 51 is called to two eerily similar car wrecks; Mouch tries to keep the firehouse informed by starting a newsletter; Cruz deals with a heartbreak. 2026-05-05 Cruz and Severide suspect foul play when a fire started by an elderly woman turns deadly. Kidd, Foster and Brett create a women's-only lounge. Firehouse 51 celebrates some good news. 2026-05-05 Severide must make a tough decision about the future of his career at Firehouse 51; Herrmann deals with the consequences of his temper; Cruz is excited to demonstrate the Slamigan at the Firefighting Expo; Commissioner Grissom returns. 2026-05-05 Severide starts off on the wrong foot at his Office of Fire Investigation assignment when, despite orders, he reopens an old case; Herrmann is on a mission to discover what caused an apartment fire; Kidd finds herself burning the candle at both ends. 2026-05-05 An unexpected visit throws Casey for a loop; Severide sets out to exonerate a wrongly convicted arsonist; Kidd pays the price for burning the candle at both ends; Cruz goes on a mission to fix one of Otis's old toys. 2026-05-06