'Narcos' is changing direction for its upcoming fourth season on Netflix and is moving the action from Columbia to Mexico with Michael Peña and Diego Luna taking on the lead roles.

The new season will explore the origins of the modern drug war by going back to its roots, beginning at a time when the Mexican trafficking world was a loose and disorganized confederation of independent growers and dealers. It will follow the rise of the Guadalajara Cartel in the 1980s as Félix Gallardo (Diego Luna) takes the helm, unifying traffickers in order to build an empire.

When DEA agent Kiki Camarena (Michael Peña) moves his wife and young son from California to Guadalajara to take on a new post, he quickly learns that his assignment will be more challenging than he ever could have imagined. As Kiki garners intelligence on Félix and becomes more entangled in his mission, a tragic chain of events unfold, affecting the drug trade and the war against it for years to come.

Today, Netflix have released the first look pics of Pena and Luna in character:

Other members of the cast include:

- Aaron Staton (Mad Men) as Butch Sears

- Alejandro Edda (Fear the Walking Dead) as Joaquin “Chapo” Guzman

- Alfonso Dosal (Hazlo como hombre) as Benjamin Arellano Felix

- Alyssa Diaz (Ray Donovan, The Rookie) as Mika Camarena

- Clark Freeman (We Go On) as Ed Heath

- Ernesto Alterio (Cable Girls) as Salvador Osuna Nava

- Fermín Martinez (Lady of Steel) as Juan Jose Esparragoza Moreno (“El Azul”)

- Fernanda Urrejola (Bala Loca) as Maria Elvira

- Gerardo Taracena (Apocalypto) as Pablo Acosta

- Gorka Lasaosa (Brain Drain) as Hector Palma

- Guillermo Villegas (Sin Nombre) as Sammy Alvarez

- Horacio Garcia Rojas (Texas Rising) as Tomas Morlet

- Jackie Earle Haley (Watchmen, Little Children) as Jim Ferguson

- Joaquín Cosío (Quantum of Solace) as Don Neto (Ernesto-Fonseca Carillo)

- José María Yazpik (Narcos) reprises his role as Amado Carrillo Fuentes

- Lenny Jacobson (Nurse Jackie) as Roger Knapp

- Manuel Masalva (Mi corazón es tuyo) as Ramon Arellano Felix

- Matt Letscher (Scandal, The Flash) as James Kuykendall

- Tenoch Huerta (Sin Nombre) as Rafael Caro Quintero

- Teresa Ruiz (Here on Earth) as Isabella Bautista

- Tessa Ia (The Burning Plain) as Sofia Conesa

- Yul Vazquez (The Looming Tower, Magic City) as John Gavin

'Narcos: Mexico' will premiere globally on Netflix in 2018.