The Shield: Season 6 was released on DVD in North America on August 26, 2008.
The Strike Team attempts to solve the murder of Lem and deal with the aftermath of Vic's discovery that Shane was the killer. Other storylines include a new officer added to the team by Claudette who is intended to eventually replace Vic, Vic's attempt to save his job, and the investigation of the murder of several Mexican officials.
Season 6 begins one week after the events of Season 5.
The season follows a few main plots and several subplots:
- Vic Mackey and Ronnie Gardocki attempt to solve the murder of Lem.
- Mackey learns that he is being forced out of the police, while a new detective, Kevin Hiatt, is brought in by Claudette.
- Dutch Wagenbach tries to solve the murder of several Mexicans.
- Julien also joins the Strike Team.
- Claudette Wyms takes over as captain of the Barn.
- Dutch Wagenbach tries to cope with his pairing with Steve Billings.
- Cruz Pezuela, a supporter of David Aceveda's campaign reveals his intentions.
- Michael Chiklis as Vic Mackey (10 episodes)
- Catherine Dent as Danny Sofer (10 episodes)
- Walton Goggins as Shane Vendrell (10 episodes)
- Michael Jace as Julien Lowe (10 episodes)
- Jay Karnes as Dutch Wagenbach (10 episodes)
- Benito Martinez as David Aceveda (10 episodes)
- and CCH Pounder as Claudette Wyms (10 episodes)
- David Rees Snell as Ronnie Gardocki (10 episodes)
- Cathy Cahlin Ryan as Corrine Mackey (10 episodes)
- David Marciano as Steve Billings (10 episodes)
- Paula Garcés as Tina Hanlon (8 episodes)
- Alex O'Loughlin as Kevin Hiatt (7 episodes)
- FJ Rio as Cruz Pezuela (6 episodes)
- Autumn Chiklis as Cassidy Mackey (3 episodes)
- Franka Potente as Diro Kesakhian (3 episodes)
- Ludwig Manukian as Ellis Rezian (3 episodes)
- Forest Whitaker as Jon Kavanaugh (2 episodes)
- Nigel Gibbs as Assistant Chief Roy Phillips (2 episodes)
- Anthony Anderson as Antwon Mitchell (1 episodes)
- Michele Hicks as Mara Sewell (1 episode)
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