Korra

A woman with dark hair and blue eyes smiles while clasping her hands, followed by a close-up of a man with a stern expression and a hat. The scene shifts to a man in a light-colored suit generating a stream of blue energy, which he directs at two men in a street setting with red lanterns. The sequence continues with a man in a red and grey outfit generating a fireball in a mountainous area, then running forward with fire trailing behind him.