Sirius is an elaborate 3D animated theatrical film that tells a cross-species story involving wolves, dogs and humans relationship between. The film is adapted from the animal novel of the same name by Liu Xuelin, former vice chairman of the Henan Writers Association, and produced by Guangzhou Weilanxing Film and Television Media Co., Ltd. The story takes place in Lanhuaao. Xuehu, the patriarch of the dog clan, and his fellow humans live together with humans, but are often attacked by wolves. There is a deep hatred between the dog clan and the wolf clan, and disputes continue. The protagonist of the story is a brave chivalrous man. He stood up in the attack of the wolf clan and led the dog clan to regroup. A desperate battle began. In this battle, the knight gradually grew up, experienced betrayal, killing and sacrifice, and finally realized the true meaning of responsibility and love. By showing the original wolf nature, loyal dog and glorious humanity, the film profoundly reveals that love is the greatest and most invincible force in the world