Written by Richard Matheson. A variation on Voltaire's 'Micromegas'. An episode about relativity and an Agnes Moorehead one woman show. Look for Robbie The Robot here! In my opinion, one of the 10 best episodes of the series. Masterpiece.
I found another my favorite episode from this second season of THE TWILIGHT ZONE. This is Rod Serling and Richard Matheson in their highest achievement. THE INVADERS succeed to play with my expectation from the beginning. It's hard to mention this episode without remembering Agnes Moorehead's electrify performance as a woman who got invaded by some "aliens". Wait until Mr. Serling & Mr. Matheson shock you in the end.