Avatar legend of ang and korra is a very unique story about the 4 kingdoms with different type of element they can bend. water , fire , earth , air  , but a war started because the fire kingdom want more power . people said that only the avatar master of the 4 elements who can defeat the fire lord . but he vanised and lost, no one could find him . then started a journey after a 100 year with two young people katara and soka who find  aang in the middle of the ocean . but aang is just a boy even though he is the avatar ... he hasn't mastered all the elements . what can he do to end the war? can he defeat teh fire lord?