Ep 2. Existence & Proof

In the second episode of season three of "The Seven Deadly Sins" entitled "Existence & Proof," the story continues from the previous episode where Meliodas reveals to the group that he has regained his full strength as the Demon King. With his newfound power, Meliodas decides to use the Boar Hat and the group as a base to confront the Ten Commandments, who are on their way to capture Zeldris.

Meanwhile, the Holy Knights are still searching for the Seven Deadly Sins and come across a village where they learn of an evil entity known as the "Cause." This entity is said to cause any disaster that befalls the village, and the Holy Knights are determined to defeat it.

Back at the Boar Hat, Merlin reveals to the group that the Coffin of Eternal Darkness, which she used to seal away the Demon King, has been missing for some time now. With this information, the group decides to set out to find the coffin before the Ten Commandments do.

As they journey through the Forest of White Dreams, they encounter a mysterious figure known as the "Sage of the Forest." The Sage initially appears to be hostile, but when the group proves their worth by defeating a powerful enemy, the Sage agrees to guide them to the location of the Coffin of Eternal Darkness.

Once they arrive at the location, they discover that the coffin is being guarded by a powerful opponent who is determined to prevent them from obtaining it. The group must fight their way through the opponent and successfully retrieve the coffin before the Ten Commandments arrive.

Overall, "Existence & Proof" is an action-packed episode filled with twists and turns. It sets the stage for what promises to be an epic battle between the Seven Deadly Sins and the Ten Commandments while also introducing new mysteries and challenges for the group to overcome.