Sometimes they fight; sometimes they work together. But one thing's for certain: when the brave and the bold team up, action's never far away!This all-new series of superhero team-ups sees Superman, Green Lantern, Supergirl, Batman, Blue Beetle and Lobo joining forces to investigate a weapon that alters probability! Marvel as Supergirl takes on all comers in the gladiatorial arena! Recoil at the horror of Cyborg Batman! Howl with laughter as Lobo and Supergirl spar in the stars! Thrill to the action-packed finale!Superstars Mark Waid ("Kingdom Come") and George Perez ("Crisis on Infinite Earths") have their own team-up to create the last word in thrill-packed superhero action!