Pa and Ma discover drug addict James on an empty New Mexico road and bring him to their ranch in Half Acre, NM.

Pa commandeers the ice-cream truck, as James provokes a rattlesnake encounter and Felipe undertakes astronaut training.

Pa drives a stolen ice-cream truck to Hector’s house in Mexico, while James interrupts Felipe’s astronaut training in Houston.

On Father’s Day in Mexico, Pa follows Hector’s sons into their classroom, and James guides Glenn out of the desert.

Pa gains control over Hector, demanding that Hector lead him to Ma, who is in dire straits.

Pa and Ma find themselves surrounded by cartel members in Mexico, while James learns new skills in Half Acre.