Expecting their serial killer's next murder to be as public as his last few, the team rushes to a hospital on lockdown when a man is admitted to the emergency room with a potentially infectious disease, as Detective Beck Nash navigates working with her old partner again.

21 Weeks is a fast-paced police procedural thriller series that ramps up in intensity with each victim that falls until its explosive final week.

Warning: This series is about a serial killer. There will be violence. There will be language. There will be other adult things. It is intended for a mature audience.