The Fourth Suitor

Princess Merida of Dunbroch turned her mother into a bear but that's in the past. Hiccup Horrendous Haddock III's Dad is friends with King Fergus when Merida's mother does the same thing,will they fall in love?Or will the other suitors win her hand or will Hiccup become one of the suitors to also fight for Merida's hand. What happens when Alvin the Treacherous enemy of both Bunbroch and Berk set ups a kidnap that points at Berk and when he declares war?