Fate/stay night, Vol. 8

With the cruel Caster now in control of the powerful Saber, the situation has turned bleak for the remaining Masters.  But right when all the cards seem to have fallen into Caster's hands, Berserker decimates her base, leaving her open to attack from Tosaka and Archer!  Will a chilling revelation about Archer's true identity put a stop to their assault...or will the honors go to Saber?