Anyamal Tantei Kiruminzoo episode 36

It aired on Monday, 14 June 2010.

Elephant surprise! I treasure cave elephants?

Every year, Ken's father goes on a treasure hunt somewhere! Riko and Ken follow him, but are trapped in a cave by an elephant that suddenly appears. Even after transforming with the Kirumin, the rocks in the cave won't budge. Can Riko and Ken escape the cave safely?