Gate Keepers 21

Episode 2

Ayane and Miu are chasing after a truck under control of the Invaders. Ayane manages to throw off the police that were following, and then tells Miu to fly over to the truck. Miu almost succeeds, but hits a highway sign instead. The next day, Miu and Ayane are at their school, when they see what appears to be a ghost. They decide to follow it, and in the process stumble upon an elevator that takes them to an underground complex. Down there they discover something that can help them find the Invaders.