Dina, disillusioned by her parents' lies, attempts to turn them in by contacting Agent Jones (Kimberly Elise).

Allie and Margot are held captive by a shadowy organization led by Calaca (Paterson Joseph), an anarchist contact Allie hopes will help them disappear.

Allie is subjected to a grueling interrogation to prove his identity and worth. He claims to be an environmental activist who invented a bird-migration tracking algorithm, though his reliability as a narrator remains questionable.

In "Calaca," the tension peaks in Mexico City as the various factions hunting the Fox family finally converge.