Grave Risk (Part 1).Professor Banner, Jaden, Syrus, Chumley and Alexis are on a field trip up on the volcano, looking at ancient ruins. Banner's cat, Pharaoh, is looking around and finds a glowing object on the ground. Three suns appear in the sky and the light shines over the group. Jaden loses consciousness and wakes up to find himself and Winged Kuriboh standing in front of a giant pyramid. A mysterious girl approaches him and explains that this is a sacred tomb and he should not be intruding here. The guards of the tomb arrive and surround Jaden. Their leader challenges him to a duel, and only if he wins he will be allowed to escape with his friends.