Anna is always getting bullied and she wants to do something about it, but can't, as she loves peace, and doesn't want to fight.
While Anna is in the woods crying and thinking about her life and what she should do about the bullies, Oscar and Alphonse come along, and they are the leaders of a magical caterpillar tribe, and they can change shape.
Anna brings the caterpillar tribe to her house, and asks them if they can help her with her problem. They agree, but Anna has to promise housing and food for them while they stop traveling for a little bit. Anna agrees, and the next day they set out for school.
Goodbye, Oscar. Goodbye, Alphonse.
When the bullies come back to torture her, they get a nasty surprise. Oscar and Alphonse have both turned into tigers to scare the bullies off.
The bullies come back the next day, but not to bully her. They come back to apologize. Anna forgives them, and they never have problems with each other again.
We're so sorry.
Anna knew it was time to send them back. The caterpillars softly wiggled in her hand, spelling out, "GOODBYE". The tribe went on, looking for the next sad and broken kid, wanting to help them all.