Nanatsu no Taizai Movie 1: Tenkuu no Torawarebito

While searching for the rare Sky Fish, Meliodas and Hawk discover a spring that carries them to the Sky Temple, an isolated realm floating beyond the clouds and inhabited by winged Celestials. Meliodas is immediately mistaken for the local youth Solaad, whose disappearance has left the community preparing for a crisis without him.

The ancient seal protecting the Sky Temple is targeted by the Six Knights of Black, demons determined to release a terrible power that has been contained for 3,000 years. When the rest of the Seven Deadly Sins reach the sky, they join the Celestials in a battle that grows more dangerous with every broken defense, until both groups must stand together against a threat capable of destroying their home.