Melt butter and set aside. Mix sugar & cinnamon, set aside. Peel and quarter apples, then roll each quarter in crescent roll. Place each one in a 13" x 9" x 2" pan. Pour butter over all the apples and then sprinkle cinnamon sugar generously over each apple. Now pour Mt. Dew around and through the middle until all gone. Bake 325 degrees for 45 minutes.