Marvel universe brought back the Avengers this year and they just faced their greatest nemesis, Thanos and even these fearless superheroes couldn’t protect themselves from puberty. You might remember seeing some of our favorite heroes survive their awkward years on screen – Scarlett Johansson in “Home Alone 3” anyone? While some of these photos may shock you. For example, are you prepared to see Captain America with a bowl-cut and braces? or Hawkeye with a mullet? Check out your favorite superheroes in their younger years below.