One Crazy Shift - [s9e10]

: After Gianna Mackey's departure, Sylvie Brett searches for a permanent paramedic partner. Though she initially thinks Violet Mikami is unavailable, she eventually asks her to join 51 permanently.

In Season 9, Episode 10, " One Crazy Shift " (originally aired March 31, 2021), the crew at Firehouse 51 deals with a chemical fire investigation, leadership tension, and a comedic subplot involving the fire department's band. Plot Summary

: Following a severe head injury in the previous episode, Captain Casey struggles with headaches and blurred vision. While he tries to hide it, Gallo notices and confronts him about the danger he poses to the team. Eventually, Casey seeks informal advice from Dr. Will Halstead of Chicago Med , who urges him to see a neurologist immediately.

: Jesse Spencer (Matthew Casey), Taylor Kinney (Kelly Severide), Kara Killmer (Sylvie Brett), Christian Stolte (Mouch), and Eamonn Walker (Wallace Boden).