Pokémon: The Series Rewrite:Indigo League Part 1

episode 36: computer warrior porygon

Ash and the group decide to help out a scientist as the Pokemon storage system is down and help out leading to them and Team Rocket getting sucked into the box system. Ash teams up with Porygon to try and stop Team Rocket's plans to steal the Pokémon in other trainer's boxes while Bill arrives to meet up with the scientist which causes a virus to take out the old virus that could end up killing Ash and friends and Team Rocket but everybody escapes without dieing and Team Rocket escapes.