The demons are collecting human souls, whilst Estarossa is recovering from the battle with Escanor. Pelio discovers that humans are being given to the demons, who are defeated by Meliodas. The King chooses the next Great Holy Knight.

King and Diane take refuge in the Fairy King's Forest to escape the Ten Commandments. But Gloxinia and Drole find them after a peaceful interlude.

Diane learns of the back-story of Gowther and makes a promise. King faces his final test in the realm and must make a crucial choice that Gloxinia faced 3000 years ago.

Sins come to know about the tragic lives of Meliodas and Elizabeth. They decide to go to the walled city of Coland where none other than Zeldris shows up...

The party heads to the city of Coland to dispel the distortion protecting Camelot. When Meliodas is trapped in darkness, they must fight without him.

Chandler, Meliodas' former mentor, aids Zeldris. He infiltrates the Boar Hat to capture Meliodas, but the Deadly Sins stand in his way.

Meliodas disbands the Deadly Sins and departs with Elizabeth. But his companions aren't going to let him go without a fight, and Hawk holds the key.

Merlin faces Zeldris, whom Meliodas has ordered to gather the Commandments. Margaret, Hendrickson and Dreyfus continue their search for Gilthunder.

The new Holy War commences as the allied forces of Stigma face off against the Demon Clan. Derieri decides to surrender her Commandment to Zeldris.

Sensing Elizabeth's magic, Derieri appears before the Stigma army. Estarossa follows her, but Sariel and Tarmiel have other plans for him.

Estarossa professes his love for Elizabeth. When he loses control after absorbing three of the Commandments, Stigma's army faces him in a final battle.

Ban searches purgatory for Meliodas. King, Deriri and the others head to Heaven's Theater to rescue Elizabeth, who's been abducted by Estarossa.

Reunited once again, Ban and Meliodas prepare to face the Demon King, who they suspect holds the key to their escape from purgatory.

With Wild now an ally, Meliodas brings Zeldris' tragic past to light as the newly formed trio make their way towards the Demon King.

Meliodas grapples with suddenly losing his memories of Estarossa. Zeldris, Chandler and Cusack threaten to overpower Merlin and the others.

Gowther reveals that his creator, the real Gowther, cast a forbidden spell on Mael and all those who knew him to end the Holy War 3,000 years ago.

Meliodas and the others have to defeat the Demon King before they can escape Purgatory and make their way to the world of the living.

Merlin rescues Elizabeth, who barely evades a falling boulder on her way to the Demon Realm with Meliodas. The Sins realise the Demon King is alive.

Elizabeth and Meliodas face the Demon King, who now possesses the body of Zeldris. Meanwhile, the Sins clash with a beast summoned by the Demon King.

With Escanor's aid, Meliodas and Gowther reach the spirit world, where they aim to split the Demon King and Zeldris back into their own bodies.

Zeldris and the Sins corner the Demon King in both realms, but the King separates from his son's body and possesses Britannia itself as his new vessel.

The long-fought Holy War comes to a dramatic end. Peace returns to the Kingdom of Britannia once again, but a new threat looms on the horizon.

Arthur's battle with Cath comes to an epic conclusion. The Seven Deadly Sins go their separate ways as peace returns to the world once again.