Ash is battling some kid in the neighborhood he was in. Ash used Chikorita while the kid used Raticate. Chikorita took quite a beating but still would not give up. Ash, seeing that Chikortia is a bit to exhausted tries to calls it back and uses Pikachu. Chikorita refuses to go in its Pokeball. Ash was holding up the battle until dark all because he could not call back Chikorita. (thetvdb.com)