Season 4
24 episodes · first aired 2021-01-13
| Still | # | Title | Overview | Air date | Rating |
|---|---|---|---|---|---|
 | 01 | From Purgatory 2021-01-13 | Ban searches purgatory for Meliodas. King, Deriri and the others head to Heaven's Theater to rescue Elizabeth, who's been abducted by Estarossa. | 2021-01-13 | 9.0 |
 | 02 | A Meeting with the Unknown 2021-01-20 | Reunited once again, Ban and Meliodas prepare to face the Demon King, who they suspect holds the key to their escape from purgatory. | 2021-01-20 | 8.3 |
 | 03 | A Single-Minded Love 2021-01-27 | With Wild now an ally, Meliodas brings Zeldris' tragic past to light as the newly formed trio make their way towards the Demon King. | 2021-01-27 | 8.5 |
 | 04 | The Victims of the Holy War 2021-02-03 | Meliodas grapples with suddenly losing his memories of Estarossa. Zeldris, Chandler and Cusack threaten to overpower Merlin and the others. | 2021-02-03 | 8.0 |
 | 05 | The Tragic Strike 2021-02-10 | 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. | 2021-02-10 | 9.0 |
 | 06 | Confront Despair!! 2021-02-17 | Gowther takes on Mael to protect his friends. Diane also joins the battle, but the Archangel's power level continues to rise as he nears his final form. | 2021-02-17 | 8.5 |
 | 07 | Hope, Conflict, and Despair 2021-02-24 | Mael changes form after absorbing four of the Commandments. King soon overwhelms him with his Spirit Spear, but Gowther tries to save the Archangel. | 2021-02-24 | 8.0 |
 | 08 | The Doorway to Hope 2021-03-03 | 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. | 2021-03-03 | 8.0 |
 | 09 | That Which Gathers 2021-03-10 | Chandler and Cusack merge to form the all-powerful Original Demon. Merlin gives up any hope of victory, but Mael and King soon come to her aid. | 2021-03-10 | 8.0 |
 | 10 | The Salvation of the Sun 2021-03-17 | As Meliodas absorbs every last one of the Ten Commandments, Merlin attempts a forbidden spell to stop the birth of a new Demon King. | 2021-03-17 | 8.0 |
 | 11 | The One Who Stands Against a God 2021-03-24 | Merlin's spell thwarts Meliodas' transformation. The Holy War seems to be over, but Elizabeth senses something is still terribly wrong. | 2021-03-24 | 7.5 |
 | 12 | We'll All Be Your Strength 2021-03-31 | Escaping purgatory, Ban faces the Demon King, who now possesses Meliodas’ body. Elizabeth and the others make their way into the spirit world. | 2021-03-31 | 8.7 |
 | 13 | The End of a Long Journey 2021-04-07 | Peace returns to the Kingdom of Liones. Although Elizabeth is still under a curse, Meliodas assures her there is a way to break it. | 2021-04-07 | 7.5 |
 | 14 | Farewell, Seven Deadly Sins 2021-04-14 | Now that Meliodas is the Demon King, he cannot remain on earth. Though his friends acknowledge his fate, they are unable to accept it. | 2021-04-14 | 7.5 |
 | 15 | Fated Brothers 2021-04-21 | 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. | 2021-04-21 | 7.5 |
 | 16 | The Final Battle 2021-04-28 | 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. | 2021-04-28 | 8.0 |
 | 17 | The Voice Calling Your Name 2021-05-05 | 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. | 2021-05-05 | 7.5 |
 | 18 | The King Sings Alone 2021-05-12 | Diane destroys the source of the Demon King's magic. Meanwhile, Escanor continues fighting the Demon King at full power, exceeding his limits. | 2021-05-12 | 8.5 |
 | 19 | The Struggle 2021-05-19 | Escanor converts all of his life energy into magic to defeat the Demon King. Meliodas pleads with his comrade to stop, but Escanor refuses to listen. | 2021-05-19 | 8.0 |
 | 20 | Mortal Enemies 2021-05-26 | 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. | 2021-05-26 | 7.5 |
 | 21 | What the Witch Had Always Wanted 2021-06-02 | 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. | 2021-06-02 | 8.0 |
 | 22 | A Taste of Chaos 2021-06-09 | The Sins are shocked by Merlin's longtime deception. Meanwhile, Merlin declares that Arthur has been recognized as the King of Chaos. | 2021-06-09 | 7.5 |
 | 23 | An Everlasting Kingdom 2021-06-16 | A vicious beast in his true form, Cath attacks the reawakened Arthur. Now separated from the Sins, Merlin attempts to take on the monster herself. | 2021-06-16 | 8.5 |
 | 24 | Heirs 2021-06-23 | 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. | 2021-06-23 | 8.5 |
Ratings shown are community scores. Once OMDB is wired, these become per-episode IMDB values.