Giant Killing follows a ragtag bunch from East Tokyo who are struggling in Japan's top football league. Nearing the bottom, they have lost 5 matches in a row which hasn't done much to team morale. Even with the fan's turning their backs on the team, it seems as if the end is near. East Tokyo United can only blame their coach right now. However, their Coach is going to do something drastic to prove to his team and fans, that against the biggest club in the nation, he can make this team win....