The TMNT are exploring the woods, led there by Donatello on a spiritual quest. Earlier in the week, Splinter had sent Don to a specific place in the forest, where the young terrapin said he had met the "Father of all reptiles," some sort of ghost or spirit. The rest of the guys doubt Donatello's story, but Splinter angrily admonsihes them for not being in touch with their heritage, one that stretches back millions of years to when the dinosaurs roamed the earth. Splinter states that everything is a ring, and what rises must fall... and as the mammals overtook the planet when the reptiles died off, so too will the mammals cease to exist. Raph, Leo and Mike are still doubtful of Don's vision, so their Sensei sends them into the woods to find the spirit as well.