When Detective Ryan Lopez's partner is killed by a gang member, he teams up with Cassius Green, who has been at the forefront of the war on organized crime; Lopez must keep his link to the Los Angelicos a secret.

Ryan looks for the rival gang members responsible for shooting Carlos, and finds himself falling for Jessica.

Ryan and the task force are ambushed as they are transporting a snitch to court; Ryan is torn between his responsibility to the task force and helping Javier and the Acosta family.

While investigating a sex trafficking ring run by the Russian mafia, the task force makes a disturbing discovery; Ryan must make a difficult decision about putting the gang's leader in jail.

Carlos plans to taint another gang's meth shipment to drive business toward Los Angelicos.

Daniel puts himself at risk while trying to make up for money he mismanaged; Carlos becomes mistrustful of Javier's plan.