Freeze all motor functions — if you don’t want to know the plot to season 2 of “Westworld,” that is. On Monday, Jonathan Nolan and Lisa Joy, the husband and wife co-creators of the HBO sci-fi hit, did an AMA on Reddit that ended in one of the most shocking ways we’ve ever seen: the two offered to reveal the entire plot to the sophomore installment of the series before it airs on April 22.