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Ryan teams up with a street-savvy veteran cop after his partner is killed by a well-known hoodlum.
Ryan must track down rival gang members who shot Carlos, in order both to avoid a gang war and to cover up his own involvement in the shooting. Meanwhile, Ryan gets closer to Jessica, who is investigating another shooting, and finds himself genuinely falling for her.
Ryan and the Gang Task Force bring a Colombian snitch to Federal Court to testify, but are ambushed en route. Ryan is torn between his Task Force duties and giving up the snitch's location to help Javier and the Acosta family go legit.
The Gang Task Force discovers a sex-trafficking ring run by a Russian mafia family, which eventually leads them to a gruesome discovery. Ryan is faced with a difficult decision when he moves to put the gang's leader behind bars, but learns that doing so will significantly delay Javier's plans to get his family on a better track.
Carlos taints another gang's meth shipment in order to drive business toward Los Angelicos' fishscale supply. But his plan backfires and causes a world of trouble for his family and for the GTF.
Daniel puts himself at risk in an attempt to make up for money he unintentionally mismanaged, while Carlos grows increasingly mistrustful of Javier's plan to "legitimize" Los Angelicos.
With Daniel held hostage and the clock ticking, Ryan engages in a dangerous heist to steal back the confiscated fishscale.
Trouble for the Task Force stems from a change in California's "Three Strikes" law. Meanwhile, Silvia's visit to Ryan is observed by Jessica; and Carlos reaches the point of no return in his plan to seize power from Javier as the leader of Los Angelicos.
Tio Gordo kills a Meta rival in retaliation after an explosion rocks a Los Angelicos festival, and the gang's leader demands "an eye for eye" from Javier to even the score. Meanwhile, Jessica shares information with Carter about the woman she saw at Ryan's home.
Ryan arrests Javier and, in doing so, proves his loyalty to the GTF. Across town, Daniel realizes he's lost all credibility in the banking industry and begins to embrace his true identity as the heir apparent to Los Angelicos.
We learn there was more to Javier’s arrest than meets the eye, and Jessica makes a startling discovery about Ryan.
Ryan has Javier make a deal with the D.A.'s office as the Metas begin to solve the mystery regarding Salazar's death. Meanwhile, Jessica reveals Ryan's secret to Ellis, and Daniel emerges as a leader within the Los Angelicos.
Daniel uses his wedding to finalize a deal between Javier and Lavar Quintel. Chapel leads his team into Mexico to find Matias, who he believes is responsible for a heinous murder.
