Anime Like The Seven Deadly Sins the Movie: Prisoners of the Sky
The setup sounds like filler until the Black Knights show up and the entire island's fragile peace collapses in minutes. Meliodas imprisoned and powerless while everything he just met burns is the kind of cruel timing this series lives for. The movie understands that the Sins are strongest when they're separated and desperate, forced to claw back from nothing, and that's exactly what it does to them.
SYNOPSIS
Meliodas and the Seven Deadly Sins venture into uncharted territory hunting for a legendary ingredient: the sky fish. What should be a simple supply run turns complicated when Meliodas gets separated and lands in the Sky Palace, a floating kingdom hidden above the clouds where every inhabitant bears wings. Mistaken for a wanted criminal, he's immediately arrested and locked away, cut off from his companions just as the kingdom faces its greatest threat. Once every three millennia, a catastrophic beast stirs from its slumber. The residents have prepared their defenses for generations, but their plans crumble when the Six Knights of Black, a ruthless Demon Clan battalion, arrives with a sinister agenda. These invaders deliberately shatter the seal containing the ancient monster, weaponizing it to terrorize and conquer the peaceful sky dwellers. Meliodas must escape his cell and reunite with his friends to stop both the unleashed beast and the Demon Clan's invasion. As alliances form between the Sins and Sky Palace's defenders, the true scope of the threat becomes clear: this battle will determine whether the floating kingdom survives.
