Andy tracks down a witness to testify at her trial. Meanwhile, Carina and Maya deal with a stressful situation, and the crew responds to a car wreck.

The Station 19 crew trade in their turnouts for tuxes and gowns as they attend the Firefighters Ball, but when disaster strikes, they jump into action to save the day.

Station 19 uses its clinic to care for asylum seekers who have been bussed in from out of state. Meanwhile, Natasha gets a visit from her sister, and Vic receives surprising news.