The Lost Empire is an IP project I did about an archaeologist who accidentally discovers a hidden empire on his research trip to Peru. The chief and most of the people of that hidden empire there does not approve his sudden 'intervention', since they have been keeping it hidden for thousand of years. However, there are also some people who are more open-minded and want to learn about what is out there.
Chief is a serious and strict, yet charismatic leader. He always assumes that the world out there is bad, so he tries so hard to keep his people invisible from the outer world. His daughter, however, has a very different view about the life out there. She is a tomboy and mischievous girl. She does not like his dad's over-protective manner towards her, and therefore really longs to explore what awaits her out there. That is what makes her bond with the archaeologist later on.