With her department under scrutiny and tensions rising across Edgewater, Sheriff Mickey Fox faces the fallout from a major investigation that threatens to upend everything she's built.
After a catastrophic dam failure unleashes historic floodwaters across Edgewater, Station 42 and Three Rock battle rising waters and dwindling resources.
A dangerous investigation collides with pivotal personal and professional decisions, pushing the team to their limits. As the D.A. election draws closer, shifting dynamics and an unexpected incident heighten the urgency and raise new questions for everyone involved.