The Robinson Family was supposed to colonize a planet in space? It was one family with a stowaway in Dr. Zachary accidentally. Ohh, that's right, there was an extra guy. Who would have his choice of the Robinson girls? (that was the original series in the 60s. Original trailer below for 1965 start date TV series:
Lost In Space Movie Trailer from 1998 with new Oscar Winner Gary Oldman as the bad doctor.