Despite being on the air for almost seven years, The Rookie has failed to produce anything that can live up to its best episode, which debuted in season 1. The ABC police procedural series certainly has had its fair share of ups and downs over the years. When The Rookie is good, it's really good, as proven by its greatest hour. When The Rookie premiered, Nathan Fillion's John Nolan was a mere rookie, alongside his friends from the police academy, Lucy Chen and Jackson West. The TV show focused on them and their relationships with their training officers and superiors....