Attack of the Prehistoric Pokémon
![](https://image.tmdb.org/t/p/original/vvfp25TaV9ep6YHPj1nvMRNZNEy.jpg)
- Runtime
- 23m
- Air Date
- Aired May 28, 1998
Our heroes approach Grampa Canyon, famous for the beautiful scenery of its valley. As they approach, however, they find wave upon wave of people also heading for Grampa Canyon.
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