We're Animals - Deal With It is the first episode of The Shapeshifters.
(It opens on a wolf running through the forest.)
Harry: See the wolf? That's me. Do not worry, I'm not going to eat you. It's annoying how many people say that. I just turned into a wolf. Doesn't make sense? Well, let me start from the beginning. In Ancient Greek times, there was a hero called Periclymenus. He was an Argonaut, with this guy called Jason, blah, blah, blah. He went on a quest and got a power from the sea god Poseidon. He could turn into animals, and now it's gone down in the family kind of like a genetic thing. I'm Harry. Now, let's meet my family, shall we? See the big guy raiding the pantry over there? That's my dad. He can turn into a bear. I don't think he's looking for honey. My mom is the only person in my family who can't, because the thing's on my dad's side. My brothers, Sam and Jack. Twins, always fighting, and always squirrels. My older sister Brianna. Will never get off her phone, so she barely ever turns into an animal, which is a deer. Don't ask me why. Dad stares at her hungrily sometimes. Gave me nightmares first time I saw it. Then there's my older brother, He Who Shall Not Be Named. He can turn into a horse, totally full of himself, and stuff. So that's my family. We're the Shapeshifters.