Episode Title:Cast Out, Part I.Episode Description:After Snotlout nearly kills Astrid for recklessly disobeying a lesson, Hiccup suspends him from the academy for disobeying the rules one time too many. However after he and Hookfang are ambushed by the Screaming Death, Snotlout is rescued by Alvin the Treacherous, who has returned to Berk to make amends.