In the final episode of Power Rangers: Operation Overdrive, the Knight of the ANITA Crown indeed plays a significant role in the resolution of the story. In this climactic moment, the Knight uses the power of the six crystals to activate the ANITA Crown, which ultimately allows him to revive Mack Hartford, who had previously been transformed into a robot.
Mack's transformation back into a human represents one of the key emotional peaks of the series, emphasizing themes of friendship, sacrifice, and the importance of humanity. The revival also reaffirms the connection between Mack and his father, Andrew Hartford. This moment is pivotal not just for Mack but for the entire team, reinforcing their bond as they fight together against villainous forces.
If you have any specific questions or would like to discuss more about this episode or the series in general, feel free to ask!