考古犬收到委託，協助調查誰是「臺灣史前第一人」？透過時空資料庫搜尋大量考古資料，考古犬發現二條線索，分別位於馬祖亮島及臺南科學園區。憑藉生物人類學和考古學的專業知識，考古犬與夥伴逐步探索「第一人」的生活與生命故事。探尋過程來到臺中拜訪朋友安和石虎，也近一步了解臺中第一人的故事。

The“Archaeological dog”has been commissioned to help investigate who are“the first people of prehistoric Taiwan”. After searching a large amount of archaeological data in the spatiotemporal database, the “Archaeological Dog”has found two clues, which are respectively located in Liangdao of Matsu and in the Southern Taiwan Science Park. With expertise in biological anthropology and archaeology, the “Archaeological Dog”and his partners have gradually explored the lives of “the first people” in Taiwan and their life stories. During the search and exploration, the “Archaeological Dog” also came to Taichung to visit his friends AN,HE and Leopard Cat to learn more about the story of “the first people” in Taichung.