Years ago, Clint Barton and his brother Barney Barton became orphans, they ran away into a circus where they met Swordsman and Trickshot, 2 very skilled men who became their mentors. The brothers learnt acrobatics, archery and marksmanship from them. One night Clint and Barney had to run away after Clint caught Swordsman stealing. Barney enlisted into the army, but Clint decided to make his own archery act with a suit and the nickname “Hawkeye”. Years later Barney came back now as a CIA Agent and asked Clint for help with a case, what Clint didn't know is that they were going after Trickshot, who kills Barney after they encounter. In the present day Clint is looking for Trickshot, he stumbles upon Natasha Romanoff who is also looking for him, since she found out Trickshot is working for the Red Room. Natasha has been having contradicting memories of her adoptive father, Ivan Petrovich, so she needs to find the Red Room for answers. They encounter Trickshot and Swordsman, they fight, but Clint discovers that this Trickshot isn't his mentor, it's Barney. Nat kills Swordsman and Barney escapes. Some days later they find the Red Room base, Nat finds her father and discovers that she was born during WWII and she was modified to live longer. Clint fights and kills the old Trickshot, but he is unable to find Barney. They destroy the base and Nat promises Clint to stay with him until they find Barney, they decide to ask the Avengers for help.
