As the Mayans welcome a new recruit called EZ, he gets assigned a task that gives him the chance to prove himself. The Mayans chafe at being under the control of the cartel.
With his son kidnapped, Galindo enlists the help of the Mayans to find him. Galindo sends a brutal message out to the rebels, which threatens to spark a war.
Emily takes matters into her own hands in an attempt to find her son. EZ deals with a traumatic past as the anniversary of the crime that destroyed his life looms over hin.
A racially-motivated murder at the border raises the tension. Jiminez turns the heat up on EZ and Felipe. Emily comes up with a plan to discredit the rebels.
Miguel confronts EZ about his relationship with Emily. An ambush leaves Angel's life hanging in the balance as EZ scrambles to save him.
EZ steps in to help Coco's daughter out of a bind. Adelita lays a trap for Miguel.
Adelita reveals her traumatic past to Felipe. Jiminez scrambles to save EZ as his deal with the DEA is pulled off the table. Adelita has a surprising offer for Miguel.
Jiminez realizes that Linc is prepared to compromise EZ to get information. Linc pulls out all the stops to get Miguel and Emily to break. Emily comes to a shocking realization about EZ.
Miguel makes the Mayans an offer as he solidifies the alliance with Adelita. Adelita exacts a bloody revenge. Angel comes up with a plan after he finds out about EZ's deal with the DEA.
Angel is forced to make a difficult choice to protect EZ. EZ comes to a startling realization about his mother's murder.