Episode 2 wasn't about Barny. It was about Gorden, Alyx, and a few others.

It was also freaking awesome!

But, I won't post the spoilers. If you haven't got the orange box, you might as well get it. HL2:Ep2 *and* Portal *and* TF2 are all great games, and having the base HL2 and HL2:ep1 on the same couple dvds is bonus