Complex sentence: The video is about a teenage heavy metal fan that gets bullied in high school by a group of bullies, the leader of the group is dating the girl that is working with the teenager to help kill the bullies.
Split into simpler sentences: The video is about a teenage heavy metal fan that gets bullied in high school by a group of bullies. The leader of the group is dating the girl, who is working with the teenager to help kill the bullies.