Malcolm shows Cara Sucia a new way to smuggle drugs across the border. Sheriff Valenzuela and Agent Wolf each independently look into Malcolm.

Yvonne helps Malcolm, now Yankee, meet with his brother, who has a plan for his escape. Cara Sucia punishes his men. Wolf finds a source in Mexico.

Wolf's life is put in danger. Cara Sucia offers to introduce Yankee to Choche, so long as he follows his violent orders. Del Toro strikes a deal.

Choche gives Yankee more responsibility, much to Cara Sucia's and Piporro's chagrin. Wolf is assigned a crucial mission. Phoebe suffers financial woes.

Yankee meets influential cartel boss El Botas. Cara Sucia starts extorting store owners and Parra takes note. Piporro's violence brings consequences.

Cara Sucia mourns his loss and swears vengeance. Phoebe and Yankee reunite in Mexico and discuss their future. Fidelia brings Wolf along on a job.

Phoebe makes a startling decision. Despite Choche's orders, Yankee seeks revenge on Cara Sucia. La Contra takes control of Clandestina nightclub.

A coordinated attack on Choche and his men takes them by surprise, and Del Toro uses it to his advantage. Yankee worries about his family.

Wolf offers help to a desperate Yankee. La Contra's violence escalates and Cara Sucia goes after Las Aguilas. Phoebe hires a new employee, Brian.

Parra asks El Botas to turn Yankee in. Revueltas's daughter is kidnapped. Cara Sucia's ambition grows and Del Toro is put in danger.

Back in Arizona, Yankee plots revenge with Wolf's help. Phoebe gets more involved in the drug business. Las Aguilas use technology to their advantage.

Las Aguilas' espionage techniques help uncover Parra's location. Wolf gives ICE crucial information. Yankee suffers a shocking betrayal.

Cara Sucia's act of narcoterrorism shocks Yankee and Revueltas. ICE interrogates Parra. Billy asks Valenzuela for his job back and seeks revenge.

Yankee is shaken by the execution of one of his employees. Del Toro investigates both the attempt made on his life and the casino fire.

Wolf meets with one of the fire's survivors. Confined to the hospital, Yankee thinks about revenge and misses his family. Valenzuela meets with Phoebe.

Cara Sucia celebrates his terrorism. Yankee proposes a radical idea to Revueltas and Botas that involves an unexpected collaboration.

Citizens protest against La Contra and violence ensues. Cara Sucia targets Del Toro's family. Yankee starts working with the authorities.

La Contra's enemies -- including Mexican and American authorities plus Yankee -- go after the cartel in a large-scale operation.

Yankee makes Ignacio a difficult offer while also attempting to help Amelia. Cara Sucia targets his rival's drones with a winged friend.

Phoebe realizes she sold guns to La Contra and Yankee decides to use it to their advantage. Del Toro sets his sights on Cara Sucia.

With the marines under suspicion, Del Toro investigates Diana de la Hoya's murder. Yvonne and Yankee make a peace deal. Wolf's trauma haunts her.

Yankee has serious concerns about his family's safety in light of his discovery. Wolf is suspicious about La Contra's actions.

In a large meeting with Mexico's narcos, Yankee suggests adding fentanyl to the drug trade and offers up a deal with Wolf.

Yankee and Phoebe decide how to handle their future, which hinges on his relationship with Amelia. Yvonne makes a power play. Billy chooses violence.