Clinton Francis Barton is a fictional character portrayed by Jeremy Renner in the Marvel Cinematic Universe (MCU) media franchise—based on the Marvel Comics character of the same name—more commonly known by his alias, Hawkeye. Barton is depicted as an expert marksman, archer and hand-to-hand combatant, with his preferred weapon being a recurve bow. Barton, an agent of S.H.I.E.L.D., is sent to kill Natasha Romanoff but decides to recruit and befriend her instead.

The Blip is a major fictional event and period of time depicted in the Marvel Cinematic Universe. The Blip began in 2018 when Thanos, wielding all six Infinity Stones in the Infinity Gauntlet, exterminated half of all living things in the universe, chosen at random, with the snap of his fingers. The Blip ended five years later, in 2023, when the Avengers utilized time travel to collect the Infinity Stones from prior points in the timeline and, with a second snap by Avengers member Bruce Banner, restored all those previously killed by Thanos.