Season 2eps20: Dragons: Defenders Of Berk -

It is revealed that the massive Screaming Death has been destroying islands across the archipelago not out of malice, but because it was searching for its mother, a captive Whispering Death.

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 Dragons: Defenders of Berk - Season 2Eps20

This is officially the only episode in the series that features a narration by Hiccup at the very end. It is revealed that the massive Screaming Death

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