Let's say Nintendo and Bandai for whatever reason decided to make a crossover between Pokemon and Digimon. Be it a video game, anime, or whatever. What do you think the story for it would be?

And how would the characters of both series play off of each other? Just to make things easier, it would between Ash and his friends, Tai and the DigiDestined, and other major characters from the Pokemon anime and Digimon Adventure universe respectively.