A horrified Katara discovers that Hama is enacting her revenge by kidnapping Fire Nation civilians with bloodbending, a sinister and dark technique of waterbending which can only be used during a full moon by an incredibly strong and skilled waterbender and when his or her waterbending abilities are at their strongest potential. She becomes Katara's mentor and shares with her the tragic story of her life as a longtime prisoner of the Fire Nation.
They befriend an old innkeeper named Hama, who reveals that she is a waterbender from the Southern Water Tribe that had been taken away sixty years previously alongside her fellow Southern waterbenders. The gang discovers that there have been strange disappearances in a Fire Nation town during a full moon.
