Lucas wishes he could squash that big bully Sid like a bug. But Lucas is too little, and so he bullies the ants instead.
The ants create a potion that shrinks Lucas to the size of an ant. They put him on trial, and find him guilty of crimes against the colony -- his sentence? To live and work as an ant! Lucas learns about teamwork and the importance of friendship--and in the end, he saves the colony and is returned to his normal size.