Charly lives happily with his old blue dog and his little pink cat. When a brown cat tries to sneak into his house, he ignores it. When a cute little brown pug plays in his garden, he doesn't care. But little by little, brown animals invade his life...

On the island of Crete, a day-dreamy boy named Icarus befriends a mysterious creature with the body of a man and the head of a bull named Asterion (aka the Minotaur). When the King asks Icarus’ father, a famous inventor, to work on a secret project, Icarus realizes his new friend is in danger.