In two hundred years Dimorphos has circled round and is now on a direct collision course with Earth. After the cataclysm human kind no longer has the means to defend itself and Dimorphos will mean our complete destruction. Somewhere in New California an historian discovers records that show an ancestor fired a fridge at the rock, knocking it off its perfectly safe course but ultimately leading it back towards us.

He has just enough time to say "What the actual f..."