Digimon sprite -part-1-(where is my brother)

The protagonist's brother has been controlled by the villain Myotismon. Myotismon reveals he was revived by Lord Bagramon and is now controlling the brother to attack. The protagonist tries to digivolve to stop his brother, but an error occurs with the dark evolution. The story is left on a cliffhanger for the next episode, which will continue the fight between the protagonist and his brother who is under Myotismon's control.