Allie Rowbottom’s great-great-great uncle bought the patent to Jell-O from its inventor in 1899 for $450, then sold it in the 1920s for $67 million — nearly a billion dollars in today’s money. Lately, Allie’s been obsessed with how all that Jell-O money shaped America, and her own family. It’s funded generations of Rowbottom women, including Allie, but it’s also been a shadow they can't escape.