Avatar Aang, the world’s last Airbender, learns of an ancient power that could save his culture from extinction. With the help of his friends, he embarks on a global quest to find it before it falls into the wrong hands and threatens to upend the peace they sacrificed everything to achieve.

In Book One, Avatar Korra—a headstrong, rebellious, feisty young woman who continually challenges and breaks with tradition—sets out on her quest to become a fully realized Avatar, struggling to find balance between tradition and modernity, the bending and non-bending world, and within herself.