Since its debut in 2005, Avatar: The Last Airbender has remained one of Nickelodeon''s most talked about and highest-rated animated series to date, and it''s not too hard to see why . . . Not only does it offer an epic storyline, engaging characters, action, adventure, and a powerful message about the importance of hope in a world long-besieged by war, all the while serving up top-notch entertainment. It''s also beautifully executed, a stunning masterpiece of animated storytelling that harmonizes Western influences with aesthetic inspiration drawn from a diverse array of cultures, including those of China, Japan, India, and the Inuit.