The 5 Ultra Oaths (ウルトラ5つの誓い Urutora Go tsu no Chikai) is the 51st and final episode of Return of Ultraman. It features the return of the monster Zetton from the Original Ultraman Series. The episode introduces The 5 Ultra Oaths.


Jiro and Rumiko are kidnapped by an alien. Ultraman and MAT must find a way to rescue them, but the infamous Zetton has arrived on earth.


Hideki Go is having recurring nightmares of the original Ultraman's imfamous final battle with Zetton. He wakes up and gets a call from an unknown figure. He is ordered to go to a baseball stadium. Meanwhile, Jiro, and Rumiko wake up in a baseball stadium and try to escape, but are stalled by Alien Bat.

Go arrives at the stadium, and encounters Zetton II, under Bat's control. Go tries to transform into Ultraman, but unable to. He hears the original Ultraman's voice and tells him that Zetton was the only monster that he couldn't defeat and if Go rushes in to battle he will lose just like him. Alien Bat then tells him of the Bat invasion of the Land of Light and that the Ultra Brothers will be unable to stop them. He threatens to unleash Zetton II on the city. An angered Go leaves abruptly. 

Go reports his findings to his teammates at MAT, who decide to have one contingent fight Zetton, who is rampaging in the city, while another contingent rescues the Sakatas. MAT manages to rescue the Sakatas, but Go is shot down by Zetton. Meanwhile, Bat transforms into a giant and the duo start to continue to rampage throughout the city.

Ultraman Jack, touched by Go and MAT's courage allows the former to transform one last time.

With the assistance of MAT, Ultraman manages to stab Alien Bat and kill him. He then destroys Zetton with his Ultra Hurricane and Specium Ray, avenging the original Ultraman's defeat.

Go, presumed to be dead, has a funeral service held by MAT and the Sakatas near the ocean. When MAT leaves, Go appears to Jiro and Rumiko one last time. Go knows he needs to go to M78. He tells Jiro to recite the 5 Ultra Oaths but he refused to. Go saids goodbye to Jiro and transforms into Ultraman. Jiro shouts the 5 Ultra Oaths at both Go and Ultraman while they vanish into the sky and return to to M78.


Guest Stars

Suit Actors




Home Media

  • Return of Ultraman Volume 13 Features Episodes 49-51.


  • With a rating of 29.5%, this is the highest rated episode of Return of Ultraman.
  • Stock footage from the final episode of Ultraman is used when Go is dreaming of the Original Ultraman fighting Zetton.
  • Ultraseven and Zoffy are mentioned by Alien Bat.
  • With this episode Jack and the previous Ultra Warriors are referred to as the Ultra Brothers for the first time.
  • In the original version when Ultraman Jack does his pose at the end of the episode the sky is afternoon, but in the HD Verison the sky is blue.
Return of Ultraman Episodes
All Monsters Attack | Takkong's Big Counterattack | Evil Monster Realm of Terror | Definite Kill! Comet Kick | Two Giant Monsters Attack Tokyo | Battle! Monsters vs. MAT | Operation Rainbow Monster! | Monster Time Bomb | Monster Island S.O.S | Dinosaur Explosion Directive | Poison Gas Monster Appears | Revenge of Shugaron | Terror of the Tsunami Monsters, Tokyo's Big Pinch | Terror of the Two Tsunami Monsters, Tokyo's Dalong Reel | Revenge of the Monster Lad | Mystery of the Big Bird Monster Terochilus | Monster Bird Terochilus - Tokyo's Big Aerial Bombing | Ultraseven Arrives! | The Giant Invisible Monster That Came from Space | The Monster Is a Giant Shooting Star in Space | Monster Channel | I'll Kill This Monster! | Dark Monster Spit out the Stars! | Horror! Mansion Monster's Birth | Leaving My Home Planet Earth | Mystery Homicide Beetle Incident | Go to Hell with This One Blow! | Ultra Special Operation | Jiro-Kun Rides a Monster | The Curse of the Bone God Oxter | In Between a Devil & Angel | Decisive Battle Under the Setting Sun | The Monster User and the Boy | The Life That Can't Be Forgiven | Cruel! Light Monster Pris-Ma | Kick the Night Away | Ultraman Dies at Sunset | When the Ultra Star Shines | Winter of Horror Series - the 20th Century Abominable Snowman | Winter of Horror Series - Phantom Snow Woman | The Revenge of Alien Baltan Jr. | The Monster That Stands on Mt. Fuji | Demon God Barks on the Moon | To the Starry Sky with Love | Assassinate Hideki Goh! | This One Blow Filled with Anger | The Targeted Woman | I'm Taking the Earth | Space Warriors - Your Name Is MAT | Invitation from Hell | The 5 Ultra Oaths
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