A mysterious and feared masked wrestler named Tiger Mask, who has already made headlines throughout the Americas for his notorious dishonesty, returns to Japan. Regarded with disfavor by the entire Japan Pro-Wrestling Association, he is immediately ostracized; the only one who seems to understand him, despite everything, is Giant Baba, a respected and extremely honest pro-wrestler. Kenta, a boy living in the Chibikko House orphanage, despite everything and everyone, shows—uniquely among the children—a tremendous admiration for Tiger Mask. The two young people who currently run this shelter for abandoned children are also former orphans, a brother and sister: Kenta reminds him strongly of their old friend Naoto Date at his age, who ran away over ten years earlier and never returned, when after a visit to the zoo, standing in front of the tiger's cage, he resolutely declared that he too wanted to one day become as strong as a tiger...

Little Kenta runs away from the orphanage to attend a match with Tiger Man, who is as ruthless as ever with his opponents.

Naoto returns to the orphanage where he grew up. While in the role of the Tiger Mask, he must face Monster, the man with the steel head.

Uomo Tigre reflects on his training at the Tiger's Den, which subjected him to cruel and nearly unbearable training.

Mister X threatens Tigre d'Acciaio because he wants him to give him half of the money he earns from the matches at the Tiger Cage.

At the airport, a tiger escapes, but Pitone Nero, the next opponent of the Tiger Mask, stops her by rendering her docile with his charisma.

After Ruriko asks Tiger Mask to fight fairly, he wins his first match without using illegal moves.

Ruriko begins to suspect that the Tiger Mask is actually Naoto, who, in the meantime, must evade the attacks of Mister X.

The gigantic Gorilla Man arrives in Japan, the next opponent of Tiger Mask sent by the Tiger Cage.

Uomo Tigre is training for his next match, but Baba makes it clear that his method is wrong.

Baba tries to convince Tiger Mask to participate in the next World Tournament, but he is hesitant.

Uomo Tigre fears that he will not be able to contain his unorthodox style for the World Tournament, but he will soon change his mind.

During the meeting with Stella di Teschio, Mister X causes a blackout in the arena to carry out another one of his evil plans.

Daimon, Naoto's training partner, sends a letter to his friend from the Tiger's Den. However, Mister X gets ahold of it and uses it to blackmail him.

Caught up in the excitement of cheering, Kenta breaks the orphanage's television, leaving the children unable to watch the next Tiger Mask match.

Stella di Teschio refuses to kill Naoto and is killed by Tana delle Tigre instead. L'Uomo Ombra doesn't want the same thing to happen to him.

Cappy is hit by a hit-and-run driver. Naoto and Kenta set out to find her.

Mister X tries to force Daimon to fight Naoto, even using torture. In the end, the man gives in and decides to face his friend in the ring.

L'Uomo Tigre decides to help a boy he just met. Will he make it back in time for his match?

Naoto takes the orphans to the amusement park, but he is pursued by Tana delle Tigri there as well.

Brisco had been confined to a wheelchair by Tiger Man when he was still evil. Now his brother has arrived in Japan to seek revenge.

Tiger Man suffers an injury during a match and should rest, but his next match is too close.

Tana delle Tigri selects a group of masked wrestlers to send against Tiger Man.

Tigre decides to participate in the masked wrestlers' tournament to help the blind orphan girl. His first opponent is Mister No.

Tiger Man must face two other masked wrestlers in the tournament in quick succession. The two use completely illegal tricks.

A mysterious new masked wrestler joins the tournament and teams up with Tiger Man against Lion Man and the Egyptian Mummy.

With the money from the tournament, Tiger Man can finally get little Lory operated on, in the hope that she will regain her sight.

Tana delle Tigri decides to build a new, larger, and more modern headquarters, while Mister X travels the world in search of new talent.

Joe Fortis arrives in Japan to challenge Tiger Man. The new wrestler turns out to be a former coach of Naoto and Daimon.

Naoto is very tense because he still can't come up with a winning move. Master Arashi tells him the story of a great champion from the past.

Suddenly, a masked wrestler and space mask science fiction that forces Antonio Inoki to challenge appeared. He was an assassin sent by the mysterious organization, the Space Pro-Wrestling Federation. Space mask science fiction that bursts into the ring and challenges Inoki. There, a man with a tiger mask appeared like a gale. He calls himself Tiger Mask II, the successor of Naoto Date's will!

The Space Pro-Wrestling Federation begins to explore the identity of Tiger Mask. The defeated space mask science fiction approaches Inoki to rematch Tiger. But Inoki didn't know the whereabouts of Tiger... At that time, Tiger appears in front of Inoki and begins to talk about his true identity. There is also a huge evil shadow approaching in the Japanese professional wrestling world...

Space mask SF that lost the first game and burned with revenge. A one-game game between him and Tiger Mask was about to begin. In this game, each other's masks are supposed to be bet. As soon as the gong rings, the exchange of advanced techniques begins. The tiger that is gradually being driven into inferiority explodes with the special move of the space mask!

A terrible conspiracy was revealed by Space Mask SF. The Space Professional Wrestling Federation was trying to take over the Japanese professional wrestling world. Moreover, the Space Professional Wrestling Federation will immediately send in a second assassin. It's The Bat, which is good at simitling attacks. Bat defeats the popular villain wrestler Bigwood and forces Tiger to confront him!

Tatsuo begins to investigate the disappearance of some high school students, all of them emerged in various sports.

Tiger Mask II and the police rescue the boys from the ship.

Tiger Mask II takes Inoki by car to the foot of Mount Fuji by showing him, through the crack of the trunk of a tree, a pyramid, which for years has remained hidden by vegetation.

Mister Who N ° 1 and N ° 2 have just arrived by plane in Japan, while Midori informs Tatsuo that the true identity of Kyuketsu-Kamen The Bat has been discovered.

The match against Mister Who N ° 1 and N ° 2 is becoming a massacre, in fact they are dominating the match by attacking their opponents in two against one as Inoki and Tiger Mask II persist in fighting loyally.

At the airport Tatsuo meets Rita, a friend and American journalist.

Tiger mask faces iron mask but he notes that there is something familiar in the Iron Mask technique, equal to that of Rita.

The mysterious head of the Space Wrestling Federation decides to go personally to Japan to attend the tag match where their new masked wrestlers.

Tatsuo learns that Emir Arman Hassan, with whom Japan has entered into an agreement for the sale and purchase of oil, will come to Yokohama aboard his luxury ship.

Tatsuo is working out the counter-move with which to beat the Hawk of Hell

The day of the match against the Hell Hawks has arrived, Hassan also attends the match sitting in a front row seat.

Nobody welcomes the fact that Inoki and Tiger Mask II do not want to sell New Japan Pro-Wrestling to Hassan despite the fact that he threatens to no longer distribute oil to Japan.

Tiger Mask, attacked by Hassan's rugby team, remembers his youth in the United States, studied in New York and worked for a newsroom.

A helicopter lands on the Oil King, the passenger is Seido Muscle, a huge savage who will be the partner of Shinigami Silver in the upcoming tag match against Inoki and Tiger Mask II.

The tag match begins and Tiger Mask II faces Shinigami Silver whose build has claws and sharp horns with which it puts the opponent in difficulty.

Shinigami Silver and Tiger Mask II face off in a great match but are then interrupted by Geller and his hit men.

Tiger Mask II trains with Inoki asking him to fight alone against Seido Muscle.

The match begins but Seido Muscle does not suffer the attacks of Tiger Mask II thanks to his muscles.

Abdullah the Butcher, a strong and famous Canadian wrestler, wants to challenge Tiger Mask II in a match.

Butcher gives Midori a private interview and reveals his past, the humiliations and sufferings he has suffered but which he has overcome, in addition to the motivations that led him to challenge Tiger Mask II in a match to the death.

Butcher puts Tiger Mask II in difficulty with his fast karate techniques, despite the masked wrestler defends himself very well, but Butcher starts fighting not respecting the rules.

American wrestlers not finding it right that the Space Wrestling Federation only fights against New Japan Pro-Wrestling decide to come forward, in fact one of them, Stan Hansen, challenges Devil Puma.

The night of the match between Tiger Mask II and Devil Puma has arrived.

Tiger Mask II and Devil Puma face off in a match with no time limit, in a clash where both demonstrate that they have practically the same strength.

Tatsuo brings Giena to Hakone and then two helicopters arrive, which suspects Tatsuo in fact those are the hit men of the Space Wrestling Federation. Geller, accompanied by Devil Puma, tries to kill Giena.

Tiger Mask II continues to fight against Devil Puma, who puts him in serious trouble with his deadly karate moves.

Tiger Mask II reaches the ring for Battle Royale, then riding a horse comes Hakuma Knight, the second strongest wrestler in the Space Wrestling Federation.

Hassan proposes that the strongest wrestler in the Space Wrestling Federation fight against André The Giant.

Tiger Mask II and The Strongs continue to fight in an exceptional match.