[Mentar]

Originally Posted by MarcusG

I have one question that bothers me. When Archer fell down from the castle
and had flashbacks for Rin and Shirou. Archer said "and I thought I thrown them away" What did that mean?

You need to figure out his identity first. Without this understanding, you can't grasp the beauty of this episode. And once you have got it, you'll understand the line, too.

For a little clue about his identity:

Spoiler:

Look at what Archer leaves behind at the end of the ED. Where have you seen this before?