... this looks to be the sort of fall-out shelter that the salesman pushed as 'also a family room!'... underground. What sets this apart from the rest of the basement is the reinforced concrete roof covered with three to four feet of soil. Wonder what sort of music Dad is about to spin on the Hi-Fi. Maybe some of that tropical Tiki lounge music. Maybe 'Oklahoma' for a sing-a-long to keep everyone's spirits up!
Seems like the air vents are a little flimsy for an apocalyptic job? On the other hand; suburbia is not supposed to be ground-zero. The rounded shapes on a pole look like some of the objects I've seen ride out heavy over-pressures in the test films.