Get Smart - Season 1 Episode 7 -

CONTROL is due to host a conference of six scientific geniuses, but just before it occurs,. KAOS manages to steal CONTROL's retrogressor gun. The gun, which turns adults into children mentally, is taken by a KAOS mole who manages to retrogress the gun's inventor and the Chief. KAOS' goal is to turn the scientists into children, destroying the free world's greatest minds.