is there a video I could watch?
Here you go.
After completing the game, the Electricity generator (Route 10) in Kanto shield Zapdos.
This should help
You go to route 10 [north of Lavender Town] and get to right side of route 10. You should see a river there. Surf down the river and at the end of it you will wil see zapdos and the power plant. Here's are some helpful links: Link 1 Link 2 Link 3