Once there was an oak tree growing in the forest. But that tree wasn’t a normal tree – it is a base for a lab. That day a scientist was working on an effervescent potion that makes things grow into monsters.
Suddenly two acorns fell into the potion. The scientist tried to take the acorns out of the potion as fast as he could. When he put them down on the counter they hatched out and turned into monsters. They went on to destroy the town.