S1·E24 The Careless Cub

David and Lisa go for a walk in the forest and meet a wolf. The wolf tells David that his wife and one of his cubs ate meat that had been poisoned by a shepherd. The wife had died, but the cub was still holding on. David examines the wolf cub and determines that a certain plant can cure him. He and Lisa split up and go look for the medicine. Lisa is snatched by the trolls, but they let her go when she tells Holler that a wolf will die if she can't get the medicine to it. The wolves are friends of the trolls. David and Lisa find enough of the plant to cure the wolf cub.