For a short time, Clint Barton abandoned his Hawkeye identity and while taking Hank Pym's growth serum, operated under the name Goliath. [-Marvel Fandom]
Clint started to feel like the weakest link on the team, not to mention that he and the Black Widow were always off on separate missions. He with the Avengers and her with Shield. Then one day, Hank Pym gathered the team and told them that he was giving up on the Goliath persona and switching to Yellowjacket permanently. Clint began to think of the possibilities when a distress signal came in and he finds out that the Widow was in trouble with an overgrown monster robot.
This robot was part of a scheme by Egghead, Mad Thinker, and the Puppet Master. Knowing the only way to save the woman that he loves was to take Pym's growth serum, Clint decides to become Goliath. Clint saves the day and the girl. Hank Pym approves of Clint being the new Goliath. [-ComicVine]
