Flystorm was first shown taking a large bone from a green Monstrous Nightmare. When Hiccup and Mildew went through the field of wild dragons, he was the only one to confront them. Hiccup quickly calmed him down by approaching his tail. He then decided to check out Mildew. Hiccup decided to use Flystorm as a way to get into the dragon pit to save Toothless. After Hiccup gave Mildew a quick course in dragon training, the two got on Flystorm and headed off. When they got to the pit, Toothless was already gone and Alvin released the wild dragons he had imprisoned there. With the help of Flystorm, they were able to escape. He also helped the trained dragons from Berk save Hiccup and Toothless. Gobber and Mildew rode him when they tried to escape, but Mildew "fell off" and had to be left behind. Flystorm is now living on Berk.
Appearance and Personality
Flystorm is mostly orange and pale green. He also is also light blue around his nose and legs.
Despite living on Outcast Island, Flystorm is actually very friendly. Although cautious at first, he took a quick liking to Mildew, even giving him a big lick. Even though he just met Hiccup, he still helps the other dragons save him and Toothless.
Strength: Flystorm can easily carry two slim Vikings like Mildew and Hiccup without effort. It's a little harder for him to carry heavy people, such as Gobber, but he is still capable of doing so.
Stamina and Agility: Flystorm has been shown to be very agile, as he dodged several attacks from a Changewing, Scauldron and Whispering Death in quick succession. He also has very high stamina, as he was still capable of running away and escaping from the three wild dragons, even after he had used up energy dodging their attacks.
Intelligence: Flystorm has shown to be quite intelligent, as he understood that Hiccup and Toothless were in trouble and joined the other trained dragons in an attempt to save them.