From executive producers Lena Dunham and Jenni Konner of Girls, Camping, a new comedy series, premieres October 14 on HBO. Camping stars Jennifer Garner and David Tennant as Kathryn and Walt, a not-so-happily married couple. A meticulously planned outdoor trip to celebrate Walt’s 45th birthday is derailed by uninvited guests and forces of nature, turning the weekend into a test of marriage and friendships.