The Legend of Tarzan Episode 18 - The Seeds of Destruction Episode Title:The Seeds of Destruction.Episode Description:When the elephant pond turns smelly because of decaying vegetation after heavy rains, Jane plants a sweet-smelling (albeit non-native) flowery vine, but the vine grows out of control, causing an ecological disaster that leads to all-out war between the elephants (whom the vine has driven out of their feeding territory) and the gorillas (whom Tarzan has persuaded to share their own territory with the elephants). Despite Jane and the Professor's best efforts, matters only turn worse, and it is up to Jane – with help from Tarzan – to undo her mistake.