Bosch: Legacy is known for following up on plot threads set up in the original Bosch series on Prime Video, with villains like Carl Rogers continuing to cause trouble for the ex LAPD cop turned private investigator Harry Bosch. However, season 2 brought back another villain who hadn't been seen since season 5 of Bosch. That villain is Preston Borders, who returns to stir up trouble for Bosch in the season 2 finale.