It's a normal day for Jim the Guy, the best plumber in the state of New York.
He goes to work in the local sewers, and to his surprise the place is infected with ghosts and monsters, and the place has been rigged with bombs! If someone doesn't do something quick, those bombs will go off and cause a massive cave in, right below NYC!
Jim grabs his old rusty hunting gun (he's never been one for hunting) and gets to work. He can't just let the city crumble —today, he puts everything on the line to save what he loves and do his duty. Today, he becomes a hero.