The snake crown is stolen (or taken back) from the Knight Templars by the earth worshippers of Crete; the three kids try to retrieve it on behalf of the Knight Templars.

When a young girl discovers a mysterious clue, she embarks on a dangerous journey to find the lost treasure of the Knights Templar. Along the way, she forms unexpected friendships and faces numerous challenges in her quest.

In this action-packed adventure, a group of young friends discover a mysterious key that leads them on a quest to find the lost treasure of the Knights Templar. Along the way, they must overcome deception, face formidable enemies, and rely on their friendship and bravery to succeed. Set against the backdrop of a medieval faire, the children navigate through secret tunnels, scale towers, and outsmart thieves in their quest for the legendary Holy Grail.