The intricately woven subplots that are 24's greatest strength are masterfully developed here, and character arcs are equally strong, especially among CTU staffers Tony (Carlos Bernard) and his wife Michelle (Reiko Aylesworth); CTU director Ryan Chappelle (Paul Schulze), who is season 2's tragic bargaining chip; and the annoying but well-intentioned Chloe O'Brian (Mary Lynn Rajskub), who makes pivotal contributions with by-the-book efficiency. It's 24's superior casting that overcomes the series' occasional lapses in credibility, and season 3's twists make marathon viewing a nerve-wracking delight. By the time it's all over, 24 once again leaves you gratefully exhausted. As always, Sutherland anchors the series in the role he was born to play. When Jack takes a private moment to release 24 hours' worth of near-fatal tension and psychological anguish, Sutherland proves that 24's dramatic priorities are as important as its thriller momentum. DVD extras include behind-the-scenes featurettes (about the prison break sequence, climactic F-18 Hornet air-strike, and real-life bio-weaponry) that pay welcome tribute to the series' hard-working crew, who create Emmy-worthy television under pressures as intense as 24 itself. --Jeff Shannon