Watch a preview of the NBC hit series The Office "Niagara" Season 6 Episode 4 which airs Thursday Oct 8 at 9pm on NBC.
Episode Synopsis: The Office travels to Niagara Falls to celebrate Jim (John Krasinski) and Pam's (Jenna Fischer) wedding under strict orders not to mention Pam's pregnancy. Michael (Golden Globe winner Steve Carell), Dwight (Rainn Wilson), and Andy (Ed Helms) all want to hook up with guests at the wedding and Michael and Dwight meet twins. Leslie David Baker, Brian Baumgartner, Kate Flannery, Mindy Kaling, Angela Kinsey, Phyllis Smith, Oscar Nunez, Creed Bratton, Paul Lieberstein, B.J. Novak and Ellie Kemper also star.