The Worst Witch 2x8

Ethel & Drusilla's prank casting a boat adrift with Mildred's cat aboard takes a dangerous turn when the cat & an unconscious, Miss Hardbroom head towards the rapids! Meanwhile, Merlin has accidentally frees a Dragon Lord from his captivity who threatens to imprison the town forever unless he gets his lost treasure back! Now its up to Mildred to save the day!