Octahedron is an octagon disk that was put together by high priest from around the world in the 16th century to put evil in its place explodes in the Smithsonian Institute, dispensing eight different pieces into different eras of time as it releases evil around the world. Dominick and Nina have to put the disk back together again in 8 days or the world as we know it will come to an end Have you ever picked up a stone and put it in your pocket, maybe the next time you'll think twice.