Aldo is looking after his 1-year-old sister Babette while their father takes a nap. But Babette suddenly falls into the greenish water of the pool. When she emerges from the water, she transforms into an animal and begins to change shape endlessly until she runs away! She has become an Archean, a human capable of drawing the power from the code of her ancestral DNA to take on any animal form. To save his little sister, Aldo must become a Super Archean too by learning to master this new power.