Trapped

This fast-paced science fiction adventure about an underground city built by an advanced alien civilization teaches children about science and technology while engaging their imaginations. Determined to learn why their scientist parents forced them to suddenly move to a boring town in Pennsylvania, Ryan and Regan follow them to work and discover that their parents are really working on a top secret investigation of an underground city. After cracking passwords, dodging barbed wire, and defeating laser beam alarms, they find themselves trapped in the abandoned city and under attack by a swarm of insect-like creatures. While trying to determine the nature of the creatures and how to escape them, scientific concepts such as the immune system, nanotechnology, and black holes are explained and explored.