Joe Spork repairs clocks, a far cry from his late father, a flashy London gangster. But when Joe fixes one particularly unusual device, his life is suddenly upended. Joe's client, Edie Banister, is more than just a kindly old lady, she's a former superspy. And the device? It's a 1950s doomsday machine. And having triggered it, Joe now faces the wrath of both the government and a diabolical South Asian dictator, Edie's old archnemesis.