Mark Fischbach was an ordinary, goofy, lovable YouTuber until a package appeared at his doorstep. Little did he know that it was the one thing that would send him down a path of espionage as he chases down the sinister Darkiplier, who has been plotting to destroy the world. (Includes callbacks to Mark's videos especially WKM, Markiplier TV, and Wilford Motherloving Warfstache.)