An animated Lego film that is a crossover between the Avengers and the Justice League, which sees the two teams battle it out at first before uniting against a team of their worst villains. After Flash accidentally uses the speed force to catch Reverse Flash and S.H.I.E.L.D. tries to harness the energy from the Tesseract, the two worlds collide, resulting in an all-out battle between the two hero teams. But when they discover that this was all a plan by a team of villains, the heroes unite to defeat them and reverse the damage done to both universes.
