The conclusion to Matt Wagner's intriguing first-teamup of Superman, Batman, and Wonder Woman early in their careers, as they try to circumvent Ra's Al Ghul's apocalyptic plans. Wagner's artwork, majestically simple, is well-adapted for depicting young icons, and his plots are competent and intriguing. But what really drives the tale and holds the interest is the characterization of the heroes as they struggle to understand each other and work past their differences toward a mutual respect, if not exactly friendship. Most intriguing is the dynamic between Batman and Wonder Woman, particularly his unusual reaction to coming across her skinnydipping. ( )