Wolfblood - S01E02- Mysterious Developments

Maddy is disturbed when her friends Shannon and Tom post copies of photos with evidence of wolfbloods around the school so Rhydian steals Shannon's original memory card. He is, however, sympathetic when Shannon explains how years ago she saw a wolfblood and has been trying to find more evidence ever since. Maddy's parents invite Rhydian to dinner and explain that not all wolfbloods are harmless, some crave human prey. Aware that Shannon and Tom are in the woods at night on their quest to find their 'beast', Maddy and Rhydian go after them. Rhydian, unknown to anybody except Maddy, changes into a wolf to frighten off the hostile wolfblood that is about to attack.