Fate/stay night

Shirou has found himself trapped in the same place Kirei Kotomine trapped Shirou's father. Surrounded by death Shirou must escape this place through will power alone, if he want's to end this Holy Grail War once and for all. Saber is also having trouble defeating the somewhat unbeatable Gilgamesh yet there is hope, with the power of "Avalon" The Ever-Distant Utopia.What will truly come about from destroying the Holy Grail? Will things be able to go back to normal?