Never have there been five friends as infamous as The Bad Guys -dashing pickpocket Mr. Wolf, seen-it-all safecracker Mr. Snake chill master-of-disguise Mr. Shark, short-fused "muscle" Mr. Piranha and sharp-tongued expert hacker Ms. Tarantula, aka "Webs." But when, after years of countless heists and being the world's most-wanted villains, the gang is finally caught, Mr. Wolf brokers a deal (that he has no intention of keeping) to save them all from prison: The Bad Guys will go good. Under the tutelage of their mentor Professor Marmalade, an arrogant (but adorable!) guinea pig, The Bad Guys set out to fool the world that they've been transformed. Along the way, though, Mr. Wolf begins to suspect that doing good for real may give him what he's always secretly longed for: acceptance. So when a new villain threatens the city, can Mr. Wolf persuade the rest of the gang to become... The Good Guys?