Hiccup and the dragon riders must fend off the Outcasts long enough to retrieve their dragons and save Berk from the invasion. Key Trivia

For a deeper dive into specific character developments, you can check the episode guide on the How to Train Your Dragon Wiki or watch it on streaming platforms like Peacock or Plex . Alvin and the Outcasts - DreamWorks Dragons - ‎Apple TV

Alvin’s mission is to find and capture the "Dragon Conqueror" (Hiccup) so the Outcasts can learn to train dragons themselves.