Failing a physical examination, Klink is ordered to combat duty on the dreaded Russian front. This naturally causes consternation amongst Hogan and his men, who don't want Klink to be replaced by a more efficient Kommandant. To save their favorite patsy -- and themselves -- Hogan's heroes cook up a scheme to convince the German high command that Klink is indispensable. Written by Laurence Marks, "Don't Forget to Write" first aired on December 9, 1966. ~ Hal Erickson, Rovi