Harley's first year ends with a bang in this extra-sized issue. It's games-within-games as Bo and Surley try to capture Harley; Bo and Carrie try to hook up (at last); Nix unleashes his plan against Harley; Buster's true colors are shown; Jack Happi meets his destiny (and it hurts); allegiances shift; and Batman strikes. And a familiar guest-star returns, setting in motion Harley Quinn's second year.