It's 2009 Hong Kong. Mrs. Lee and her baby grandson Tom are being chased by yaoguai. They are saved by the 12 Chinese Zodiac. Tom is the chosen one. It's 15 years later in San Francisco. Tom is now a bullied high school kid. His grandmother had kept his powers a secret. They are attacked by the wicked magician Loo who is after his Phoenix stone. The 12 Zodiac gather to protect the boy.
The story is pretty simple as in good versus evil. There is a thing to get. There is the boy savior. The difference is mostly the Chinese culture. I would use more generalized English terms for some of these Chinese things. I would definitely give some of the Zodiac better powers. For example, the rooster crows in the sunrise. Why not have him throw off rays of sunlight? Instead, he's throwing feathers like darts. The pig rolls in mud. Why not give him earth power or throwing around mud? It seems random that the monkey can shrink things. The monkey should be super-smart. So on and so on. Finally, it's a French animation company and they are at least a generation behind. The surface work and the designs are all a little off. It's lesser animation.