A live action Avengers/Justice League crossover film: Lex Luthor finds a way to bridge two worlds, taking the heat and pressure off of him and forcing the two good sides to fight head to head! While this is happening, he allies himself with villains of both worlds, and together, they begin building holding facilities as he studies each of them trying to find a way to harness each sides best abilities/strengths. Eventually both sides see through this, and team up!
