Serenity has finally saved her father. She can at least have some father-daughter bond. Only there's no time for fun, for the Marvel and DC superheroes must team up in order to stop Thanos from uniting both Marvel and DC supervillains. Plus, Hawkeye hasn't been seen for a while and is most likely kidnapped by the enemy side. Marvel and DC superheroes are ready to save both of their worlds from the threat of Thanos and the villains. Luckily, Serenity's father feels his old superhero powers coming back to him as the Archer, every archer's favorite archer and his superhero great-uncle, Eagle Eye, is ready for action too. As the superheroes gather to stop Thanos and the villains, Serenity faces a challenge that will change her forever for one tragic incident will make her decide who to save: her father or Hawkeye?