With the turn of a page, the Clown Princess shatters DC continuity into a bajillion pieces. Familiar heroes and villains get weird (like, even weirder than usual). Harley's own mom gets wiped out of existence. And a Golden Age crime-fighter called Captain Triumph is unleashed on the present day--but it's a present he wants to send back! Can the Mistress of Mayhem and her crazy continuity-cop partner Jonni DC save the universe? Or are they goin' down in a hail of canon fire?