The Unit

''The Unit'' is an American action-drama television series created by David Mamet that aired on CBS from March 7, 2006, to May 10, 2009 with the total of four seasons and 69 episodes. The series focuses on a top-secret military unit modeled after the real-life U.S. Army special operations unit commonly known as Delta Force.

On May 19, 2009, CBS cancelled the series after four seasons. Provided by Wikipedia