The trailer for Avengers 4 (Avengers: Endgame) is finally here, and fans are going absolutely nuts. The trailer reunites us with the surviving Marvel heroes Iron Man, Captain America, Black Widow, Hulk, Thor, Ant-Man and more. And it really makes you think that the person that put this together LOVES to make people sad. So many scenes designed to pull at our heartstrings and remind us that our favorite heroes have turned to dust thanks to Thanos and his snap.