Dexter finds the Ice Truck Killer's latest victim mutilated but alive and strapped to a table for Dexter to kill. Instead, Dexter reports the crime scene, and his sister finds a partial fingerprint of the Ice Truck Killer. Rita learns that her colleague's fiancé, who was illegally immigrating from Cuba, is missing, and asks Dexter to investigate the problem using his police connections. He investigates Jorge Castillo, a salvage yard owner, and discovers that Castillo is murdering the smuggled immigrants who cannot pay for their freedom. Dexter discovers that Castillo's wife is involved in the murders, and kills both of them. Afterwards, he dumps their bodies in the ocean and frees their Cuban prisoners, not noticing a person watching him from the trunk of a car in the yard.