Astrid was Hiccup's first crush and first girlfriend. Though they were only in tenth grade they had a special connection like no one else could ever have. One day, Astrid goes missing. After having been missing for a year, she is proclaimed dead. Hiccup develops anxiety and depression, even starts to become suicidal. He distances himself from his friends no matter how hard they try to get him to talk to them. One day, while Hiccup is walking on a busy, crowded street, Hiccup catches a glimpse of her. He knows it's her. He'd pictured it a million times in his head. Desperate to see her again, he tries to find the one who shattered his heart. Will they ever be together again?