I can see from your about page that you are the proud grandmother of some military boys - so we all should cut you some slack. That is James T. Kirk, Captain of the Enterprise from the TV show Star Trek. One of his enemies was a guy by the name of Khan. And he would yell out his name when Khan did something bad - “KHAAAAAAANNNN!!!!”
The scene is from one of the star trek movies: The Wrath of Kahn. Kahn has taken over the Enterprise and abandoning Kirk on a planet. In the movie Kirk yells Kahn’s name and the camera pans back to show the helplessness of being stranded while the yell reverberates up to space.