A Nightmare on Elm Street is a 1984 American slasher film set in the fictional Midwestern town of Springwood, Ohio, the plot revolves around several teenagers who, if they fall asleep, will be killed by the ghost of Fred Krueger in their dreams, thus causing their deaths in reality. The teenagers are unaware of the cause of this strange phenomenon, but their parents hold a dark secret from long ago. Major John Sheppard mentioned he would be telling the Athosian children this story. (SGA: "Hide and Seek")
Upon learning that he is the antagonist in several peoples' nightmares, Sheppard compares himself to Freddy Krueger. (SGA: "Doppelganger")