Sammy Feral is a lucky boy. His family run a zoo and so he spends his spare time hanging out with orangutans, crocodiles and snakes. But his luck has just run out his entire family has been infected with a werewolf virus! Now his mum, dad and sisters are howling at the moon, craving raw meat and, worst of all, trying to infect Sammy! Luckily, Donny and Red a crack team who investigate animals that don't exist are on hand to help. But with an evil professor determined to take over Feral Zoo and no known cure for the virus, things aren't looking good for Sammy!