Yapool, an ancient interdimensional race of beings tries to conquer the Planet Earth with his army of monsters, called Terrible-Monsters. The newest member of the Ultra Brothers, Ultraman Ace, arrives on Earth to aid humanity in the battle against Yapool. Touched by the sacrifices of Seiji Hokuto and Yuko Minami, he revives them and grants them the Ultra Rings, which allows them to transform into Ultraman Ace in times of need.
Impressed by the sacrifices of Seiji Hokuto, & Yuko Minami by protecting the people during an attack of Verokron who was created by Dimension Man Yapool, The 5 Ultra Brothers gave the two humans lives, & send their new member Ultraman Ace to be their human host to fight off a age of new Monsters know as Chouju
Beyond the Giant ChojuE2 · 25 min
An enormous silver colored egg is found at a construction site. With curiosity getting the best of him, a worker is absorbed into the huge egg shortly before it submerges below ground.
Burn! Choju HellE3 · 25 min
On patrol, Minami witnesses the sky crack open and a monster emerges. Destroying a bridge with a little boy on it, a passenger plane flies overhead and it, too, is destroyed.
30,000 Year Choju AppearsE4 · 25 min
Giant Ant Chouju vs. Ultra BrothersE5 · 25 min
Pursue the Mystery of the Transformation ChoujuE6 · 25 min
Kaiju vs. Choju vs. AlienE7 · 25 min
Life of the Sun, Life of AceE8 · 25 min
10,000 Choju! Surprise Attack PlanE9 · 25 min
Decisive Battle! Ace vs. Hideki GohE10 · 25 min
While walking around in the streets, Jiro spots Hideki Goh, although his caretaker doesn't believe him. Shortly after Jiro saw Goh, Zaigon emerges and attacks, trampling buildings.
The Choju is Ten Women?E11 · 25 min
The Red Flower of Cactus HellE12 · 25 min
Execution! The Five Ultra BrothersE13 · 25 min
Ace, and the four Ultra Brothers were sent to Planet Golgota by a fake Ultra Sign, where there were crosses prepared for them while Yapool summons his new Chouju Barabba to destroy the Earth Leaving TAC to battle the Chouju.
The Five Stars that Scattered Throughout the GalaxyE14 · 25 min
With the Ultra Brothers chained to crosses at Planet Golgota, and Ace defeated by Barabba, Yapool created Ace Killer to absorb, & steal the Ultra's Powers in a attempted to defeat Ace.
Curse of the Black CrabE15 · 25 min
Ghost Story! Cow God ManE16 · 25 min
Yoshimura was given a holiday break by TAC and rides a train to Okayama.
Ghost Story! The She-Devil of Firefly FieldE17 · 25 min
Lend Me the PigeonE18 · 25 min
Yapool obtains a boy's homing pigeon, Kajiro, and transforms it into his newest Choju creation, Black Pigeon.
Mystery of the Kappa's ResidenceE19 · 25 min
The Star of Youth, the Star of a CoupleE20 · 25 min
I Saw the Phantom of a Heavenly WomanE21 · 25 min
Yapool, Demon of RevengeE22 · 25 min
Reversal! Zoffy Now ArrivesE23 · 25 min
Look! A Giant Transformation in the Middle of the NightE24 · 25 min
The Pyramid Is a Choju's Nest!E25 · 25 min
Total Annihilation! The Five Ultra BrothersE26 · 25 min
Miracle! The Father of UltraE27 · 25 min
Farewell Yuko, Sister of the MoonE28 · 25 min
The Sixth Ultra BrotherE29 · 25 min
The Ultra Star That Even You Can SeeE30 · 25 min
From Seven to the Hand of AceE31 · 25 min
With a Prayer upon the Ultra StarE32 · 25 min
Shoot That Hot-Air BalloonE33 · 25 min
A Choju Dances on a Sea of RainbowE34 · 25 min
A Gift from ZoffyE35 · 25 min
This Choju has 10,000 Phones?E36 · 25 min
The Star of Friendship ForeverE37 · 25 min
Resurrection! The Father of UltraE38 · 25 min
The Life of Seven! The Life of Ace!E39 · 25 min
Give Back the Panda!E40 · 25 min
Ghost Story! Lion DrumE41 · 25 min
Mystery! The Resurrection of the Monster WooE42 · 25 min
Ghost Story! The Cry of the Abominable SnowmanE43 · 25 min
Setsubun Ghost Story! The Shining BeanE44 · 25 min
Big Pinch! Save Ace!E45 · 25 min
Ride Beyond the Time MachineE46 · 25 min
Curse of the SalamanderE47 · 25 min
The Revenge of VerokronE48 · 25 min
The Flying JellyfishE49 · 25 min
Mass Chaos in Tokyo! Traffic Signals Gone HaywireE50 · 25 min
Life-Sucking SoundE51 · 25 min
Tomorrow's Ace Is You!E52 · 25 min
Yapool created his strongest choju called Jumbo King for the final attempt to kill Ultraman Ace, created by combining the souls of the deceased choju: Unitang, Cowra, Mazaron Man and Mazarius. Yapool (in the form of The Child of Alien Simon, and in the company of TAC) unleashed Jumbo King