I Am an American The Sheriff of Cochise : Season 1 Episode 28

A desperately ill Mexican woman slips across the border and arrives with her young son at the Blair's ranch house seeking help. When the mother dies, the Blairs seek the assistance of a priest to adopt the boy. Unless Sheriff Morgan can find evidence the youngster is an American citizen, he'll be shipped back to Mexico; in the interim, he has to track down the killer who's trying to cross the border in the other direction.