a perfect life until a nuke hits and they flee to a vault his wife and son are left he find his wife still a live but he soon finds out his son is with the most powerful bandit killer miller

When Justin wakes up, his life has completely changed. On the day March 17th 2089, multiple nukes had dropped on his country sending it all to pieces and ruins. Also, his family has mysteriously disappeared from the bomb shelter and the door is cracked open. What could be waiting on the other side, his family or something worse? Idea from the game Fallout 4