Wolfblood - Season 3 Episode 11 -

Intrigued by Tom's bizarre behaviour form teacher Mr Jeffries follows Tom and his friends to the Smith house and witnesses a stand-off between Jana, Ceri and Rhydian and Sweeney, the latter pursuing him. She catches him but he is rescued by Rhydian, who has transformed himself into a wolf. The group are anxious lest the teacher should expose the secret of Jana and Rhydian but he agrees to say nothing.