Happy Town Season 1 Episode 4 (Happy Town s01e04) with title “Slight of Hand” airs on Wednesday, June 2nd 2010 at 10:00 pm via ABC.
Here is summary for Happy Town Episode 4 :

Rachel vanishes, setting off fears that the Magic Man has returned, and Tommy finds an unlikely ally while searching for her. Meanwhile, Handsome Dan announces that he’s leaving Haplin.

Few hours after original series aired on TV, online streaming video for Happy Town Season 1 Episode 4 usually available on Net and of course, if video available, as soon as possible will show you where you can watch this episode for free.