Wagon Train is an American Western series that ran on NBC from 1957–62 and then on ABC from 1962–65, although the network also aired daytime repeats, as Major Adams, Trailmaster…

Duncan MacDonald, a 19th-century Royal Canadian Mountie, has to escort a group of Cree Indians back to their above-the-border reservation. His guide in this endeavor is the not-too-trustworthy half-breed Natayo.

A giant asteroid is heading toward Earth so some astronauts disembark from a nearby space station to blow it up. The mission is successful, and they return to the station…