Youth in revolt! Spinning out of the runaway hit Batman: Beyond the White Knight comes an unforgettable coming-of-age super villain tale starring the children of Harley Quinn and The Joker! When the rebellious twins run away in a stolen Batmobile, only Joker Jack Napier s quickly fading hologram has any hope of getting them home safely and keeping them out of the family business. But a life of crime isn t the only temptation young Bryce and Jackie are facing: the kids uncover a dark secret that could bring their dad back to life for good! With a wild array of Batman s former enemies and allies on their tails, will the kids succeed in reviving the Dark Knight s greatest foe? Find out as Jackie and Bryce take center stage in the White Knight Universe! Collects #1-6.