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...

Johnny and his friends embark on a journey to rid their land of an evil giant. While inside the giant's castle, the children are trapped by the giant and put through a magical shrinking machine. Johnny narrowly escapes the castle, but he is now the size of a small insect. Johnny will find that the world of insects is no picnic. The bees are feuding with the hornets, and Johnny is right in the middle of it. Johnny must now gain the trust of the insects to help him rescue his friends from the giant. Can he do it in time?

Scientists speculate why the end of the last Ice Age caused the extinction of some of Earth's largest animals.