Well, I saw this music video, and I can't remember the name of it or who it's by, I remember the music video, so, um here it is:
There are male teenagers and one girl, they ride their bikes around the city with guns. One of the guys is probably dating the girl, then he has to go to war and he has to leave her and his friends behind. But when he comes back, he goes after one of his friends because he let him go, he beats the guy and the other guys and the girl run to the fast food place where the guy is beating the other dude, they try to get in but the doors are locked, then they go and get some military people and the guys finally brakes down and cries after.