The researcher discovers the element in Zonders different from anything found on Earth and names it Z0, making appropriate devices to detect this new material. Meanwhile, a "wild bike", as it was dubbed by the population turns out to be EI-10, but is very elusive. With (new) information from Mamoru saying that a zonder can turn back to a human (although it was never displayed in previous episodes), three of the team members - Geki Hyuuma, Swan White and the scientist - search for it, but loose half the episode chasing red herrings.