Ciudad de México. Skateboarding compadres and casual lovers, Miguel (Diego Calva) and Johnny (Eduardo Martínez) have known each other since they were kids—Johnny’s mother, Brenda, is still the maid for Miguel’s well-off family. The two kids spend most of their wasteful days skating through the streets of the city, along the overpasses, through the markets and plazas, supporting their shambolic lifestyle by herding up “cows” to be “milked”—marshalling their friends to sell their blood to emergency rooms and ambulances. All goes relatively well until a lucrative offer arrives that turns out to be cartel-related and much more than the still-innocent Miguel and Johnny can handle.