Jack soon came to discover that this land had been untouched by Aku's evil or by Alien worlds. And magic was nonexsistent, instead there was SCIENCE, unfortuanetly this left him with no time portals to use.
"Perhaps I could use this... 'Psy-Ants' to find a way home," Jack thought. So he obtained a Scientist outfit created a lab in the the basement of a house he had taken from a guy who was totally a demon in disguise as a innocent human pleading for his life. Also he got a monkey from somewhere because it reminded him of the monkeys that taught him jump good. In his pathetic ignorant attempt to perform science he combine common household spices and sugar along with some super kawaii stickers little girls put on their notebooks. Obviously this did nothing, but just then Jack's pet monkey bursts in and starts jumping good all around everywhere and makes the liquid remains of Aku spill into the mixture.
BOOM!
Thus the Powerpuff Girls were born!