NBC management praised the show as NBC's "strongest new show" in a decade and was very optimistic about its prospects. For decades, Raymond Reddington, a former military intelligence officer nicknamed "Red", has been an important figure on the FBI's wanted list. He brokered various transactions for all kinds of criminals around the world and brokered illegal businesses, and was called the "administrator of the criminal world." However, what was surprising was that he took the initiative to "surrender" to the FBI, which had never caught him, and put forward a mysterious but amazing condition: he was willing to help the federal government catch the terrorist Ranko Zamani, who everyone thought was dead, but he only talked to one federal agent-Elizabeth "Liz" Keen (Megan Boone), a "rookie" who had just finished training to become a junior analyst at the FBI. Liz was confused by this sudden situation-this was her first day at work!