The residents of Alpha take a trip through time as the moon passes through a time warp and the Alphans meet themselves as caveman from the Stone Age of 40,000 years ago.
Elenco:
Martin Landau
,
Barbara Bain
,
Catherine Schell
,
Barry Morse
,
Tony Anholt
,
Nick Tate
,
Prentis Hancock
,
Zienia Merton
,
Clifton Jones
,
Anton Phillips
.