Liv's science class has a new botany project: finding the plant that best represents them. Mrs. Arber, the ghost caring for (and haunting) the Gloomsdale Botanical Gardens, comes in to give a helping hand. In a town full of ghosts, Liv isn't even sure she knows who she is, but when she meets a new ghost friend, she discovers that maybe she's not the only one feeling like the odd-ghoul-out.