Welcome, one and all, to the first television adaptation of a Mark Millar comic, and the first fruit of Netflix’s £25m purchase of his publishing house in 2017. It is Jupiter’s Legacy, a tale full of intergenerational superhero conflict, flashbacks to late 20s Chicago, and as much crash-smash-whizzbangery in among the parental guilt, boomer certainty and millennial angst as you could hope to find...