Fossil Fools

Ash, Misty and Brock have reached the famous Ruins of Alph. Summoned there by a note from Professor Oak they join him and an old student of his, Foster in a facility for studying Pokemon fossils. Foster has made an amazing discovery, live pre-historic water-type Pokemon thought to be extinct for thousands of years! However, their habitat is being threaten by an unknown force, and Ash and friends go to find out what it is.