Four women—Ruby, Dana, Brazil, and Jessie—choose the extraordinary when they join the Minneapolis Fire Department. Prepared to fight literal fires, none of them anticipates the threats lurking in the dark corners of the firehouse. Each must decide: Is it better to secure her own place in a flawed system or fight for a better system for everyone? Based on true stories, follows these courageous women as they form friendships and support one another, no matter the cost and despite the danger.