Happy Tree Friends: Zombie Outbreak is a HTF tv series spin off with 1 hour long episodes. In here, after a factory accident involving soda and blood, people of happy tree town become cannibalistic zombie-like creatures and invade the town. Now escaping barely alive, several HTFs attempt to live on their own in this new zombie like world, meeting new people as well. People in this series speak English instead of their usual garbling English-like voice. Rated R for extreme gore, violence, and language.