When civil war breaks out in the South Korea, a gay vocal trainer (Seungkwan) is forced to join the military in order to spare his ailing father. And there he meet the oh-so sizzling hot halfter Commander Veron Chwe.

He also meet new friends. The shining gum- I mean the guy who have a shining gum that loves toothpaste, a guy with a shining long hair (he use toothpaste for that), a little guy who's small but a little satan, a walking clock (because of his eyes 10:10),An emo boi who's done with his life and just reading a book.A tan man who keeps annoying the emo boi, the horse(yeah horse) just kidding~~ a man who looks like the brother of j-hope for being a horse..(this is joke onleh okay??) and  a mother fu--er gentleman /le dance gentleman by PSY/ who always says "Drink water not alchohol", A dinosaur,(because of his face features LOL), the chinese guy who is a actor, and a chinese guy who is so straight forward in what he says..

Are you ready for the Unstoppable PRIVATE SEUNGKWANNIE??