You can find the full series of Merlin on several major streaming platforms:
Near death from a Serket sting, Merlin uses his powers as a Dragonlord to call for help. The Great Dragon, Kilgharrah, rescues him, fulfilling his promise to help Merlin in exchange for his freedom. How to Watch Watch www xrysoi se Merlin 2008 S03E01
During a skirmish with bandits, a disheveled and bruised Morgana suddenly emerges from the forest. Uther is overjoyed, but Merlin is immediately suspicious, knowing he previously tried to poison her to stop a great evil. You can find the full series of Merlin