Merlin Season 2, Episode 13, "The Last Dragonlord," is a pivotal finale where Merlin embraces his heritage to save Camelot from a vengeful Great Dragon. The episode follows Merlin's journey to find his father, Balinor, and inherit the powers necessary to command Kilgharrah to stop the destruction of the kingdom. For detailed information on this episode, visit the Merlin Wiki . "Merlin" The Last Dragonlord (TV Episode 2009) - IMDb