Witch Way Out is an episode of David the Gnome. It first aired 11 March 1985, and first aired in the US on 9 May 1987.
Lisa worries when David doesn't come back home. He was removing a thorn from a deer's hoof, but hadn't come back. On the way home, David tells that there are many stories about supernatural creatures in the forest. While going down a steep hill, Swift trips over a rope, and he and David are captured by the trolls. Lisa sets out to find them and, disguised as a witch, makes a sleeping potion for the trolls. When the trolls fell asleep, she rescued David and Swift.