O'Donnell, Keaton star in CIA miniseries

TNT has firmed up its new slate of original programming for the summer, adding a miniseries about the CIA to "The Closer" and two new weekly series.

"The Company," which focuses on the activities of the CIA during the Cold War, is scheduled to premiere in August. The six-hour limited series will join a pair of other new shows, the previously announced "Heartland" and "Saving Grace." The cable network also announced several new series in development Tuesday, including a project from Steven Bochco and an update of the 1960s series "The Saint."

"Our strategy with original series is to provide an environment in which the industry's best and brightest can work and be successful," says Michael Wright, who oversees original programming at TNT. "The roster of top talent coming to work at TNT demonstrates our commitment to providing our viewers with the very best dramatic entertainment possible."

Chris O'Donnell (late of "Grey's Anatomy"), Michael Keaton ("Cars," "Batman") and Alfred Molina ("Spider-Man 2") star in "The Company," which follows CIA agents who are deeply embroiled in the spy game. Ridley and Tony Scott are among the executive producers; Ken Nolan ("Black Hawk Down") is writing the script and Mikael Salomon ("Band of Brothers," "Salem's Lot") is directing.

"Heartland," which stars Treat Williams ("Everwood") as a transplant surgeon and Kari Matchett ("Invasion") as his ex-wife, an organ-recovery coordinator. It's scheduled to premiere in June and is likely to be paired with "The Closer," which is back for a third season.

"Saving Grace" (formerly just "Grace") features Oscar winner Holly Hunter ("The Piano," "The Incredibles") as a self-destructive Oklahoma City police detective who meets an angel ("Deadwood's" Leon Rippy) who helps put her back on the right path.

Among TNT's development possibilities are a drama co-written by Bochco ("NYPD Blue," "L.A. Law") and David Fiege about friends from law school who are professional adversaries; "A.D.," a family drama from the "Hoosiers" team of Angelo Pizzo and David Anspaugh; and "The Saint," a contemporary take on the '60s show from William J. MacDonald ("Rome") and Jorge Zamacona ("Homicide," "Wanted").