Accidentally on Purpose > Season 1 > Episode 15 Back to School - Accidentally on Purpose Episodes Online

Zack and Davis get invited to their high school reunion. Zack brings Billie and is concerned because his ex Melissa will be there, and not only is she beautiful, Zack has not really told Billie about her and that they have been in touch on Facebook. Ryan more

Watch a sneak peek of ACCIDENTALLY ON PURPOSE "Back to School" Episode 15 airing Monday February 8 (8:30-9:00 PM, ET/PT) Synopsis: Billie invites herself to Zack's high school reunion but worries that she can't compete with his hot, ex more