Pokemon Season 1 Episode 25 - Primeape Goes Bananas

⁣Ash is on his way towards Celadon City, and encounters a Mankey. The
Mankey starts chasing him. Later on, the Mankey steals Ash's hat. Ash
tries to get it back and fails. Team Rocket arrive to get Pikachu and
when Mankey walks by, James kicks it away and it evolves into Primeape.
They run away from it. After remembering the words Prof. Oak said, Ash
captures it.