After they inexplicably find an ornate crown, Smith reprimands young Will Robinson for touching 'someone else's property' but then sneaks back and dons the ornate topper, only to experience shocking pain. This overture sets up a contrived story involving aliens who use the dazzling chapeau as a test to select their next King but 'uneasy (and temporary) is the head that bears the crown'. This Smith-centered episode resorts to the classic 'duplicate' trope so common in TV sci-fi, and although the identical doctors with reciprocal personalities are amusing, the ending is painfully predictable. The monster of the week is a just hairy person who speaks with a thick, stereotypical Eastern-European accent but his team of androids are pretty good and Smith, who was rapidly becoming a sniveling coward as the character descended into comic relief, briefly becomes a man of action. Like many of the LiS stories, the ending leaves a lot of 'but why...' moments since there doesn't seem to be any reason that the aliens can't just return when they discover that they've been hoodwinked. Not one of the better episodes in the uneven but generally entertaining first season.