Ultraman: S1 E39 - Farewell, Ultraman
The group of discs that flew from the other side of the universe aimed at Japan to destroy SSSP Japan branch and Ultraman at the beginning. Members dispatched the base and thus it got thinnedand get destroyed from inside by a mysterious alien. In addition, the alien's trump card, Space Dinosaur Zetton, appeared. Hayata transformed into Ultraman! Set in SSSP base, a fierce battle has begun!