There's a Point to Everything

Clint Barton, Hawkeye. Master assassin, Avenger, saviour of the Earth. And, apparently, someone with the ability to piss off an organisation with which he's had no contact. Ever. Someone wants Clint dead. Nothing new, but apparently this time it's personal. Even though Clint has no idea what's going on. (Includes all of the Avengers, set after Thor 2 before Cap America 2.)