S4 E1 • Shine! The Five Ultra Brothers

Impressed by the sacrifices of Seiji Hokuto, & Yuko Minami by protecting the people during an attack of Verokron who was created by Dimmension 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

Première diffusion : 7 avril 1972

S4 E2 • Beyond the Giant Choju

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. TAC investigates, but finds no traces of the construction worker, or the egg. Later, a golden egg-shaped flying object is detected. Hokuto intercepts it, seemingly destroying the UFO. Later on during a party for Hokuto and Minami, the golden egg reappears in the city nestling atop a building. Shortly thereafter, the silver egg reemerges and combines to form a super egg with the golden one. TAC discovers that a similar occurrence is described in an ancient Egyptian text about a giant creature named Chameleking hatched from a golden and silver egg that attacked Atlantis. It is surmised that Yapool is attempting to recreate this ancient scenario on Earth.

Première diffusion : 14 avril 1972

S4 E3 • Burn! Choju Hell

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. TAC investigates the wreckage and finds no sign of the little boy, nor the monster Minami described. Hokuto finds the yellow hat belonging to the boy which happens to have his name, Shiro Nakamori, printed on it. Hokuto locates his parents and upon meeting the boy, realizes something is wrong with him after he swipes his gun and attempts to kill him with it! It's discovered the boy has been possessed by the Yapool, using him as a host for the monster Vakishim. Luring the main TAC members away with a decoy, Vakishim is sent to destroy the TAC headquarters at the base of Mount Fuji.

Première diffusion : 21 avril 1972

S4 E4 • 30,000-year Chouju Appears

Première diffusion : 28 avril 1972

S4 E5 • Giant Ant Chouju vs Ultra Brothers

Première diffusion : 5 mai 1972

S4 E6 • Pursue the Mystery of the Transformation Chouju

Première diffusion : 12 mai 1972

S4 E7 • Kaiju vs. Chouju vs. Alien

Première diffusion : 19 mai 1972

S4 E8 • Life of the Sun, Life of Ace

Première diffusion : 26 mai 1972

S4 E9 • 100,000 Chouju! Surprise Attack Plan

S4 E10 • Battle! Ace vs. Hideki Goh

Première diffusion : 9 juin 1972

S4 E11 • The Chouju is Ten Women?

Première diffusion : 16 juin 1972

S4 E12 • The Red Flower of Cactus Hell

S4 E13 • Execution! The Five Ultra Brothers

S4 E14 • The Five Stars that Scattered Throughout the Galaxy

S4 E15 • Curse of the Black Crab

S4 E16 • Monster Story: Cow God Man

S4 E17 • Monster Story: The She - Devil of Firefly Field

S4 E18 • Lend Me the Pidgeon

S4 E19 • Mystery of the Kappa's Residence

S4 E20 • The Star of Youth - The Star of a Couple

S4 E21 • I Saw the Phantom of a Heavenly Woman!

S4 E22 • Yapool, Demon of Revenge

S4 E23 • Comeback! Zoffy Now Arrives

S4 E24 • Look! A Giant Transformation in the Middle of the Night

S4 E25 • The Pyramid is a Chohju's Nest!

S4 E26 • Total Annihilation! The Five Ultra Brothers

S4 E27 • Miracle! The Ultra Father

S4 E28 • Farewell Yuuko, Sister of the Moon

S4 E29 • The Sixth Ultra Brother

S4 E30 • The Ultra Star that Even You Can See

S4 E31 • From Seven to the Hand of Ace

S4 E32 • With a Prayer Upon the Ultra Star

S4 E33 • Shoot that Hot-Air Baloon

S4 E34 • A Chohju Dances on an Open Rainbow

S4 E35 • A Gift from Zoffy

S4 E36 • This Chohju 10,000 Phones

S4 E37 • The Star of Friendship Forever

S4 E38 • Resurrection! The Ultra Father

S4 E39 • The Life of Seven! The Life of Ace!

S4 E40 • Give Back the Panda!

S4 E41 • Ghost Story! Lion Drum

S4 E42 • Mystery! The Resurrection of Monster Woo

S4 E43 • Ghost Story! Cry of the Yeti

S4 E44 • Setsubun Ghost Story! The Shining Bean

S4 E45 • Big Pinch! Save Ace!

S4 E46 • Ride Beyond the Time Machine!

S4 E47 • Curse of the Salamander

S4 E48 • Revenge of Velocron

S4 E49 • The Flying Jellyfish

S4 E50 • Mass Chaos in Tokyo! Traffic Signals Gone Haywire