The anime shows the adventures of Ash Ketchum , a 10-year-old PokÃ mon trainer who has many adventures , meeting many new people and PokÃ mon. . His most famous PokÃ mon , and probably the most famous PokÃ mon , is Pikachu . The series follows Ash Ketchum and his friends ( human and PokÃ mon ) he makes on the way as he travels the world catching new PokÃ mon , battling PokÃ mon trainers , winning Gym Badges to enter tournaments , and thwarting the attempts of criminal organizations .