Where to watch
Young Johnny is gung-ho and full of courage. Johnny's brainiac twin sisters, Susan and Mary, use Johnny as their guinea pig for their outrageous scientific experiments. If they can dream it up, Johnny will do it; as long as his genetically engineered super dog, Dukey, can come along.
First Air Date 2005-09-17
Last Air Date 2014-06-18
Featured on...See all 4 lists
sam_cordaro shared a tip "Dexter's Lab/Powerpuff Girls ripoff. It also ripped off my other favorite TV shows and movies, too! UGH!"
addison_6457 shared a tip "Best show ever"
kimkat_buntyn shared a tip "i love this show so much! it’s scientific but it’s hilarious"
joseph_b_9569 shared a tip "Really good show"
teresa_ayala_446 shared a tip "Where johnny goes to these future ans is a criminal. Yours?"
kpopandbooklvr1 shared a tip "I used to watch this show on Cartoon Network as a kid. It's so funny and cute with a lot of jokes."
selena_williams_9098 shared a tip "I don't know if I still like it or not but did when I was younger"
Leigha_J shared a tip "Brings me back to my childhood"
fidel_checo shared a tip "It was a great show about a little boy and his dog"