S01E01 Teen Wolf's Family Secret
The grandmother of Scott finds the old family album, like Scott his ancestors also had the ability to turn into werewolf every full moon.
After a transformation Grandpa Howard ends chasing up Ballard the cat from the next door neighbor around the whole neighborhood, and then Conroy the dog keeper finds Grandpa Howard frolicking around and mistakes Grandpa for a stray dog and puts him in the doghouse.
Like all teens growing up, Scott Howard is going through some changes. Only, compared to the other kids in Wolverton, Scott's changes are a little odd: long hair, sharp nails and...fangs! Scott is a werewolf! As if Scott didn't worry about being accepted by his schoolmates enough! But as hairy as things can get for a budding werewolf, Scott's friends and the other members of the Howard family will be there to help him through it.