Hiccup decides to trust Alvin the Treacherous , who has returned seeking to make amends. Together, they infiltrate Outcast Island via a secret underwater tunnel system.
Both Alvin the Treacherous and Mildew receive forms of redemption. Alvin and Stoick finally bury the hatchet and end their years of hatred. Dragons: Defenders of Berk - Season 2Eps20
A massive conflict erupts on Outcast Island involving the Riders, Alvin's forces, and the Berserkers. The Screaming Death eventually reunites with its mother and leaves the archipelago in peace. Key Outcomes & Trivia Hiccup decides to trust Alvin the Treacherous ,
This is officially the only episode in the series that features a narration by Hiccup at the very end. Dragons: Defenders of Berk - Season 2Eps20