Ash's Journey Begins/Trying To Catch a Pidgey/Spearow Attack/An Explosive Thundershock/Ho-Oh Enters/A Rainbow Wing appears

Here is the scene of Ash's journey begins as he tries to get Pidgey, but gets attacked by a flock of Spearow, then Pikachu unleashes a massive thunderbolt and then Ho-Oh enters giving Ash a rainbow wing in Team Robot in Pokemon Movie: I Choose You!.