The Russians Are Coming the Russians Are Coming (1966)

In the Cold War, when the captain of a Russian submarine comes too close to the Gloucester Island in Massachusetts to get a look at America, the submarine gets stranded. A nine-man team commanded by Lieutenant Rozanov goes onshore to search a motor boat to release the submarine and arrives at the summer house of the New Yorker writer Walt Whittaker, who is spending the weekend with his family in Gloucester. When he realizes that they are Russians, he believes that it is an invasion. Soon the information leaks, leading hysteria and paranoia among the inhabitants of the small village.