After having made the acquaintance of a Knight, a Princess embarks on an incredible quest, hoping to overthrow the tyrants who took the Kingdom.

When Gilthunder stops the village from making ale by thrusting his sword in the centre of the town, only Meliodas can remove it, making him town saviour.

Meliodas, Hawk and Elizabeth travel to the daunting Forest of White Dreams, where Meliodas takes risks to obtain information.

Diane joins the mission to free Ban from the Baste Dungeon.The group is attacked by an enemy set on crushing the whole town and the Deadly Sins whilst Ban waits alone in the dungeon.

The magical sound of a mysterious bell causes the friends to start fighting each other. Meanwhile, Golgius is after the sword that Meliodas and Elizabeth currently have in their possession.

When Elizabeth and Meliodas try to break into the dungeon, the two holy knights Friesia and Ruin stand in their way. An omen says that Britannia seems to be on the brink of disaster.