You thought this story as all wrapped, didn’t you? Not even close! Well a little close. In this final chapter of CHALLENGE OF THE SUPER SONS, Robin and Superboy must finally come face to face with their world’s-finest-fathers and explain what on earth just happened and why the entire Justice League was attacked in the span of a day. Superman and Batman join the fray in this explosive final chapter of the latest installment of THE SUPER SONS!