The Winchesters prequel spin-off of Supernatural had potential for a stronger season 2 but was canceled after season 1. The first season focused on establishing the show's place in the wider franchise but ended with clarifying the story's boundaries, setting up a stronger narrative focus in season 2. A potential second season could have included cameos from familiar Supernatural characters like Sam and Castiel and further developed John and Mary's story. Unfortunately, The Winchesters did not get enough time to fulfill its potential, similar to how Supernatural needed time to establish itself.
