Lost in Space (1965)

Episode Overview

Professor Robinson finds himself ensnared in a matter transfer emission ray, landing him in an alternate dimension where he encounters an evil doppelgänger of himself and Don. This bizarre realm, known as the anti-matter world, distorts reality in unsettling ways. The sinister version of John reappears, plotting to usurp the Robinson family's lives and claim John's identity. As tension mounts, Will and the Robot must devise a plan to thwart his ambitions. Can they successfully restore balance and return everything to its rightful state, or will chaos reign?