In a Civil War setting, the Three Stooges assume the identities of Southern officers to gather vital intel for the North. However, when their cover is blown, they flee and take refuge inside a cannon, which ultimately propels them back to their own headquarters in the North.
Uncivil Warriors
A group of Northern spies, posing as Southern officers, uncover vital information during the Civil War, but their deception is revealed, forcing them to seek shelter in a cannon, which unexpectedly transports them back in time.