Doc and his Marty leave the Marties arguing with each other, saying the future can wait until after they have enjoyed the present for a while; they then depart to an unknown time.
博士和他的马蒂在彼此争吵中离开马蒂一家，表示未来可以等待他们享受目前的时光一阵子后再去，后来他们用时间机器前往一个未知的时间点。