The Alphans encounter a miles-long ark from the planet Daria, where the inhabitants have a very distinctive class separation.
Did You Know?
This episode and "The Infernal Machine" are the only season one episodes that don't include Anton Phillips (Dr. Bob Mathias) in the cast. See more
Prof. Victor Bergman
Twenty miles long by five miles wide.
Cmdr. John Koenig
One hundred square miles of space ship.