First air date: Mar 31, 2015 Episode duration: 00h 16m Rating: (6.5) based on 2 votes Status: Ended Seasons: 2 Episodes: 52 Genre: Animation, Sci-Fi & Fantasy, Action & Adventure
Scattered throughout the world is proof of an advanced prehistoric civilization. There exist those who desperately want to learn more about these ancient people. The series follows people who set out on an adventure to uncover the truth.