Unless it's the opening credits of Legend of Thunder, with the Cyndaquil evo sequence and beating Nidoking. But that's a pocket of time existing outside even the special itself, and was on fast forward anyway.
I suppose the Nidoking's owner could be considered a plot hole, given who he is in the games and who he's likely related to.
But speaking of offspring! How about Oak's timeline in movie 4? Since he was 10 40 years ago, he'd be just over 50 now. Which would mean he became a grandfather at around 40, possibly younger if Gary's aged at all. Which would mean both him and his own child would have had to have reproduced quite young (not impossibly young, but late teens). And toss in that Gary may or may not have an older sister, and that Oak may be the same age as Agatha, who's shown to basically be older than dirt...just figuring out Oak is enough to make your head explode.