Fan Casting

After finding out that his partner while working for S.H.I.E.L.D Natasha Romanoff is a double agent and working for Hydra, Hawkeye confronts her only to be framed by her as the double agent. Throughout the movie Hawkeye works to escape S.H.I.E.L.D and eventually has to fight Natasha but is defeated and has to go into hiding until he meets Bruce Banner and after they talk Bruce invites him to join the Avengers which Hawkeye refuses knowing Nick Fury the director of S.H.I.E.L.D also controls the Avengers. Hawkeye soon gets into a fight with Nick Fury which ends in Hawkeye shooting Nick Fury's eye out. Natasha then shows up and knocks Hawkeye out. Nick Fury and Natasha then put Hawkeye in a cell on the S.H.I.E.L.D Helicarrier. In the post credits scene, we see Natasha talking to a mysterious figure who is revealed to be Baron Zemo.