15 Season
331 Episode
ER - Season 12 Episode 22 21 Guns
Life. Death. Chaos. It's all in a day's work.
Chaos reigns in the ER when two prisoners are brought in for treatment, but instead plot a violent escape. Their desperate actions place one doctor in harm's way, and forces one nurse to become a tool in their plan.
- Year: 2009
- Country: United States of America
- Genre: Drama
- Studio: NBC
- Keyword: chicago, illinois, hospital, doctor, surgical operation, emergency room, medical drama
- Director: Michael Crichton
- Cast: Maura Tierney, Parminder Nagra, Linda Cardellini, Scott Grimes, David Lyons, Angela Bassett