While browsing in an antique shop, Jinpei stumbles upon an ancient map. Excited by the discovery, he brings it to the rest of the Science Ninja Team, which sparks a thrilling treasure hunt. The map leads them through ancient ruins and dangerous terrains as they follow its clues...but are they able to make it out alive with the treasure intact? A civilian-clothes interlude for the Science Ninja Team in the vein of The Goonies!