21 Days [A Hawkeye/ Clint Barton fic] [HEAVY EDITING]

"Clint Barton, you have twenty days, twenty-three hours, and fifty-nine minutes to live." Stubborn as usual and sick as a dog, Clint Barton, also known as Hawkeye, accidentally drops into an enemy banquet. Instead of crashing the party, he's captured by an agency he has never heard of before. This agency makes Hydra a...