Watch Online Free on Watchseries. Ten years after the Fourth Holy Grail War, a devastating clash between Masters and Servants, another war erupts. Shirou Emiya, whose father fought in the first battle, was leading a peaceful life with the warmhearted Sakura Matou. But when hidden forces begin to stir, Shirou resolves to fulfill his father’s dying wish, protect Sakura, and fight for the Holy Grail.