First time eh? Was a friggin weird episode, they are not all so cryptic DW. This is the second series, that was the fourth episode of it I think. Still trying to work out whether that bird was actually real or just a figment of Tony's imagination.
Absolutely love the show, it's funny as f*ck. Deals with all the issues facing modern youth in a very real and honest way, gets portrayals spot on most of the time too. I guess that's why I love it because it's easy to relate to... a few years ago that would've been me off my tits at a rave
Download the first series if you're keen to see it from the beginning. The characters are really starting to develop now.