The Seven Deadly Sins: Prisoners of the Sky

Touring in quest of the unusual ingredient, “sky fish” Meliodas and Hawk arrive at a palace that floats above the clouds. The people there are busy preparing a ceremony, meant to protect their home from a ferocious beast that awakens as quickly as every 3,000 years. Nevertheless sooner than the ritual is full, the Six Knights of Black—a Demon Clan navy—removes the seal on the beast, threatening the lives of everyone inside the Sky Palace.