How did they color grade this shot?

Hi all,

I'm working in CS5.5, and I'm hoping to get a color grade similar to the one at 0:55 in this video (well, actually the finished product at 1:18, but the example actually starts at 0:55):

https://www.youtube.com/watch?v=rHJJpBzqIic

Can anyone tell me what exactly is going on here? What tools are they using to achieve this shot?

Thanks,

Matt