For a two hour episode, not much happened, but it was all right I suppose.
I like the introduction of the Carnival element. Has a Clive Barker Feel to it. They seem to know about Peter's general type of powers, calling him an empath, so hopefully they can teach him to use them effectively. His shifting powers are getting annoying.
And Tracy's powers rock! Water body and cold? Hell yeah!
Now unless the writing has improved, my guess is Claire's new roommate killed her old one in order to move in with her.