The film was first revealed in February 2012 by Toei Animation. It was developed to fit modern audiences.
The team in charge of making the film had discussions with Kurumada to execute major changes in the characters that would be well received.
The music of the film was composed by Yoshihiro Ike and features the theme song “Hero” by Yoshiki.
The film begins with Sagittarius Aiolos being chased by two Gold Saints, Capricorn Shura and Gemini Saga.
They were sent by the Pope of Sanctuary in order to kill him for treason. Aiolos was struck down, but Saga died during the struggle.
Meanwhile, in the Himalayas, Mitsumasa Kido and his butler Tatsumi explore an icy cavern.
As he goes ahead, Mitsumasa discovers a baby girl and Aiolos, barely clinging to life.
With his last Cosmo, Aiolos shows Mitsumasa that the Pope branded Aiolos a traitor and he escaped with the baby in order to save her.
The baby is a reincarnation of the goddess Athena. He also explains that in sixteen years, brave young men known as Saints will
arise to protect her. Aiolos dies, leaving the Sagittarius Cloth behind.
Sixteen years later, Saori Kido, a young girl troubled by her mysterious powers, is being driven by Tatsumi.
He explains that Mitsumasa, Saori’s late adoptive grandfather, kept her safe all these years and learns she is the reincarnation
of the Goddess Athena and the existence of the Saints. However, they are suddenly attacked by Saints.
Saori is saved by Pegasus Seiya from an assassin sent to kill her.
Seiya’s friends and fellow Bronze Saints Cygnus Hyoga, Dragon Shiryu, Andromeda Shun, also arrive to rescue her as her protectors.
That night at the Kido Mansion, a Gold Saint, Leo Aiolia, arrives to retrieve the Sagittarius Cloth and kill the fake Athena, Saori.
After the Bronze Saints are defeated, Tatsumi hands over the Sagittarius Cloth, but not before Saori displays her Cosmo.
With newfound doubt, Aiolia leaves, asking Saori to come to Sanctuary to prove she is Athena.
Upon learning of her destiny, she heads to Sanctuary and wage war against its Pope.
Seiya, alongside his friends and Phoenix Ikki (Kenji Nojima) must pass through the twelve Zodiac Temples in Athena’s Sanctuary in twelve hours,
in order to save their goddess Athena from imminent death.
They must confront each of the twelve Gold Saints that guard each of the temples in order to reach the cure that will save Athena,
which she was struck with earlier in the film. After breaking through the first two temples of the Zodiac, the Saints discover
that the first two Gold Saints, Aries Mu and Taurus Aldebaran are their allies.
After Seiya defeats Alderaban, both he and Mu agree to watch over Athena while the others go through the rest of the Temples.
At the Cancer Temple, Cancer Deathmask teleports Hyoga and Shiryu to the entrance to the Underworld, but Hyoga is rescued by his master,
Aquarius Camus, and ends up in the Aquarius Temple.
There, Hyoga battles his master and is victorious, with Camus’ final words being “protect Athena”.
Meanwhile, Seiya and Shun arrive at the Leo Temple where Aiolia attacks them mercilessly.
At the entrance to the Underworld, Deathmask’s Gold Cloth abandons him after it discovers his evil nature.
Shiryu removes his own Cloth and kills Deathmask. He is then teleported back to the Cancer Temple alongside Hyoga.
As Seiya and Shun struggle against Aiolia, the Virgo Gold Saint Shaka comes to their rescue, stopping Aiolia, allowing the Bronze Saints to continue.
Once at the Scorpio Temple, Seiya and Shun are attacked by Scorpio Milo, with the battle escalating all the way to the Sagittarius Temple,
with Capricorn Shura waiting for them. Back at the Cancer Temple, Saori arrives with Mu and Aldebaran and revives the unconscious Shiryu and Hyoga,
even though she is weakened. While Seiya and Shun struggle with Milo and Shura, respectively, Ikki comes to Shun’s rescue,
but all three Bronze Saints are taken down. Milo then discovers Aiolos’ testament, entrusting the Bronze Saints with Athena’s life.
The surviving Gold Saints, alongside Hyoga, Shiryu, and Saori arrive. Shaka reveals that the Pope put Aiolia under an illusion,
explaining why he attacked Seiya and Shun. Shaka also reveals that the Pope is the real traitor within Sanctuary.
Saori, Shiryu, Hyoga, and Shun join their Cosmo to revive Seiya. Pisces Aphrodite speaks to the Pope about the current situation,
but he is beaten up by the Pope. Sanctuary is then attacked by the Pope who reveals himself as Gemini Saga, who faked his death sixteen years ago.
He reveals to the Saints that he tried to kill Athena all those years ago but was stopped by Aiolos. Now he plans to take control of the universe.
He brings a giant statue to life and the Gold Saints join forces to destroy it, while Seiya faces Saga alone.
Seiya burns his Cosmo to reach the mythical Seventh Sense and gains the upper hand, but Saga merges himself with another giant statue
and prepares to destroy Athena and everyone in Sanctuary. Suddenly, the Sagittarius Cloth covers Seiya and he is able to rescue Saori.
With Saori in his arms, Seiya confronts Saga one last time and saves her from Saga’s curse.
He shoots a powerful arrow to destroy Saga, saving Sanctuary and the world. Saori, now in control of Sanctuary, addresses all the Saints,
thanking Seiya and his friends for rescuing her.
In a post-credits scene, Seiya, Shiryu, Hyoga, and Shun celebrate Saori’s sixteenth birthday.