At Sanxingdui, many of the unearthed relics are in pieces or otherwise severely damaged, having been smashed or burned in rituals before being buried. In restoring them, it's essential to match the various pieces of the same object. It's like doing a particularly difficult, 3-dimensional jigsaw puzzle and, although the latest technology can be helpful, the process still requires considerable patience and a sharp eye. As the director of the Exhibition Protection Department of Sanxingdui Museum, Yu Jian takes charge of searching for clues that allow him to put the broken pieces together as much as where they were.