Book 2: Earth, Volume 1 contains the first five chapters (episodes) from the second book (season) of the Avatar series, which totals 20 episodes altogether. The story continues from the previous season.
Now a master Waterbender, Aang leaves the Northern Water Tribe on a quest to master the next element, Earth. The Earth Kingdom is vast, and Aang encounters many new people and challenges as he continues on his quest to master the elements and bring peace to the world.
More About Avatar: The Last Airbender:
Avatar: The Last Airbender tells the story of a 12-year-old Airbender boy named Aang (Zach Tyler Eisen), who is a master of all four elements - air, water, earth, and fire. The world is in a state of war since the Fire Nation went on the attack years ago, and Aang may be the only hope for restoring peace to a war-torn world.