When Cartoon Network's Green Lantern: The Animated Series returns in September, Hal Jordan is finally back on Earth, having vanquished the rage-feuled Red Lantern Corps. But producer Jim Krieg cautions the audience "not to get too comfortable with the happiness Hal is feeling in his heart, because we're just gonna mess up his life again." That begins as soon as Hal gets home and finds he's been replaced as the Green Lantern of Sector 2814 by Guy Gardner, a character well-known to comic-book fans as a tactless and hotheaded bruiser. "He's like Hal Jordan cranked to Level 10," says producer Giancarlo Volpe. "He's that much cockier, more brash and a womanizer."