Amazon's promotional campaign for Bosch: Legacy's 'final season' is finally underway, but it was the fans who kept Harry Bosch alive during the long gap between seasons. When Amazon unexpectedly canceled Bosch: Legacy back in September 2024, the fans fought back with their own campaign: to save the show. The real Ballard inspiration, Mitzi Roberts, has told fans she endorses the Save Bosch: Legacy petition, and it's a huge boost with the 'final season' just weeks away.