Fletcher Knebel

A officer with the Joint Chiefs of Staff uncovers a planned military coup of the U.S. government and has only one week to prevent the takeover.

A U.S. Army colonel alerts the president of a planned military coup against him.

A junior U.S. senator comes to believe that the president is mentally unbalanced and sliding into paranoia as he seeks closer ties to the Soviet Union, believes a media cabal is out to get him, and wants to annex Canada.