You will watch Pokemon Season 1 Episode 4 online for free episodes with high quality. Online episode guide, Pokemon Season 1 Episode 4 Challenge of the Samurai Ash and Misty are now wandering through Viridian Forest. A Samurai challenges Ash to a battle, and it turns out to be Metapod vs. Metapod. After a short time, a swarm of Beedrill attacks, and Ash’s Metapod is taken by them. Can Ash get his Pokémon back from them or will it be doomed to live its life without Ash? Also, Ash’s Metapod evolves into a beautiful Butterfree.