Tom Clancy’s Jack Ryan ran for four seasons on Prime Video with diminishing returns. The third and fourth seasons traded the geopolitical complexity of the earlier episodes for tighter action plotting that felt more conventional and less distinctively Ryan-ish. John Krasinski was always a slightly counterintuitive casting choice who grew into the role, and the series ended without the kind of conclusion that closed the story permanently. Tom Clancy’s Jack Ryan: Ghost War, arriving May 20 on Prime Video, is a feature-length film rather than a new season — a format choice that signals the franchise is testing whether the character has theatrical-scale appeal or whether the streaming-series model was the right container all along.