Arnold Schwarzenegger has added yet another action-thriller to his list of upcoming projects.  Open Road Films has sent out a press release announcing that Schwarzenegger will star in Ten for director David Ayer (Street Kings).  Once again, Ayer will be working on a cops-and-criminals story, and this one focuses on a DEA task force who heists a drug cartel safe house, and then start getting picked off by an assassin.  Screenwriter Skip Woods (X-Men Origins: Wolverine) penned original screenplay, although it sounds like a play off Agatha Christie's novel Ten Little N****rs (the missing letters are not "a-g-g-e").

Hit the jump for the press release, which includes the official synopsis.  Schwarzenegger will next be seen in The Expendables 2, and you can watch the trailer here.  The ex-governor will also be seen in The Last Stand on January 13, 2013, and he's currently shooting The Tomb with fellow sexagenarian Sylvester Stallone.  Ayer's next film, End of Watch, opens September 28th.  Click here to watch the trailer.

Here's the press release.  I've put the synopsis in bold.

ARNOLD SCHWARZENEGGER TO STAR IN “TEN,” TO BE DIRECTED BY DAVID AYER

OPEN ROAD FILMS TO DISTRIBUTE THE ACTION THRILLER FILM FINANCED BY QED INTERNATIONAL

LOS ANGELES, CA, May 7, 2012 – Open Road Films has acquired all U.S.distribution rights to Ten, an action thriller starring screen legend Arnold Schwarzenegger, to be directed by David Ayer and financed by QED International.  The announcement was made today by Tom Ortenberg, CEO of Open Road Films and Bill Block, CEO of QED International.

Schwarzenegger, who is currently filming The Tomb will appear in The Expendables 2, being released in August, and stars in The Last Stand which will be released in January 2013.

The project re-teams Open Road Films and filmmaker David Ayer, whose latest film, End Of Watch, will be released by Open Road on September 28, 2012.

The original screenplay for Ten is by Skip Woods (X-Men Origins: Wolverine, A Good Day To Die Hard).  David Ayer is helming the film.  Bill Block, Paul Hanson, Joe Roth, Palak Patel and Al Ruddy will serve as producers.  Alex Ott of Ayer’s Crave Films is executive producer.

In Ten, an elite DEA task force deals with the world’s deadliest drug cartels. Specializing in complex mobile operations, the team executes a tactical raid on a cartel safe house. What looks to be a typical raid turns out to be an elaborate theft operation, pre-planned by the DEA squad. After hiding millions in stolen cash, the team believes their secret is safe – until someone begins assassinating them one by one.

"I am really excited about this project and the team that's come together," said Schwarzenegger.  "David Ayer is incredibly talented and exactly what I want for a story this compelling."

Ayer stated, "This is going to be an amazing role for Arnold.  Reality is the watchword of this project and an exciting cast is in the works. I couldn't be more excited as a filmmaker to work with one of my longtime heroes."

"We are thrilled to be working with a world class movie-star like Arnold Schwarzenegger and to continue to be in business with the extraordinarily talented David Ayer," stated Ortenberg.  "And we could not be more pleased to be doing another picture with our friend and partner Bill Block."

Block stated, "We've put together a real dream team on Ten.  Arnold has been a longtime friend and bringing him together with a provocative filmmaker like David Ayer as well as Tom Ortenberg and his talented team at Open Road is a win for all of us."

David Ayer’s writing credits include 2001 hit film Training Day, which earned an Academy Award® for Denzel Washington, as well as scripts for The Fast And The Furious, S.W.A.T. and U-571.  He also wrote and directed Street Kings and Harsh Times.