Where There's A Knight, There's A Way

If you've been playing Chess for long enough, you are probably aware of the unpredictable nature of knights.  In this game, I was in trouble early because I missed a problem regarding the defensive powers of my opponent's knights, which stopped my own knight.  But later, the game changes as I find a way to make the game more complicated by making a sacrifice involving..yep, a knight.  Note that I'm playing the white pieces.