Mousie and Sad Girl are childhood best friends in a contemporary Los Angeles poor Hispanic neighborhood. But when Sad Girl becomes pregnant by Mousie's boyfriend, a drug dealer named Ernesto, the two become bitter enemies. While their dispute escalates towards violence, the violence of the world around them soon also impacts their lives.

This epic depiction of thirty years of Chicano gang life in Los Angeles focuses on a teen named Santana who, with his friends Mundo and the Caucasian-but-acting-Hispanic J.D., form their own gang and are soon arrested for a break-in. Santana gets into trouble again and goes straight from reform school to prison, spending eighteen year there, and becoming leader of a powerful gang, both inside and outside the prison, while there. When he is finally released, he tries to make sense of the violence in his life, in a world much changed from when last he was in it.

Jeb Maynard is a patrolman guarding the U.S.-Mexican border, whose partner and buddy Scooter has just been murdered...