Phase 4: Bunker Building
Phase 4 is where the rubber meets the road, or in this case, where the bunker meets the doomsday. You're almost ready for the end of the world.
We've got the basics down, now it's time to add some serious fortifications. Steel doors, reinforced walls, and enough canned goods to last a small nation.
Or, if you're not ready for that level of commitment, you can always go back to Phase 3: Basic Survival Skills