Cast: Oldřich Lukeš, Ignacy Machowski, Julius Ongewe, Mikhail Postnikov, Kurt Rackelmann
Studios: DEFA-Studio für Spielfilme, Crown International Pictures, Zespół Filmowy "Iluzjon"
A mysterious magnetic spool found during a construction project is discovered to have originated from Venus. A rocket expedition to Venus is launched to discover the origin of the spool and the race that created it.
