The Devil Colony

1. Gray

1.1. Genius

1.1.1. family troubles

2. Native americans

2.1. Chief

2.1.1. Weapons

2.1.1.1. arrows

2.1.1.1.1. nature

3. Supervolcano

3.1. apocolypse

3.1.1. ash cloud

3.1.1.1. death of human life

3.1.1.1.1. overdue for eruption

4. nanotechnology

4.1. nutrinoes

4.1.1. dangerous

4.1.1.1. explosions

4.1.1.1.1. virus