Lena Dunham’s HBO series Girls continues to tease fans with a new promo video for its upcoming fourth season. Dunham appears in the video along with co-stars Allison Williams, Jemima Kirke, Zosia Mamet, Alex Karpovsky and others in a behind-the-scenes peek at where the characters of the hit HBO comedy will be heading in 2015. Lena Dunham’s Hannah was last scene in a teaser trailer falling off a bike at the fictional University of Iowa writer’s workshop and Marnie was her music partner’s secret mistress. Even more exciting about next season are the cast of guest stars scheduled to appear including American Horror Story’s Zachary Quinto, Gillian Jacobs, Danny Strong and Marc Maron. Plus, Mamet’s overly-excited Shoshanna will finally be on-screen with her parents (her mother is played by Curb Your Enthusiasm‘s Ana Gasteyer). “I was so incredibly excited to hear that I got to meet my parents this year,” said Zosia Mamet. “I sort of always just imagined that she, like, came out of a sea shell or a pea pod or something.” Girls has become a staple comedy series for HBO, receiving a renewal for a fifth season before Season 3 had even premiered! Check out the promo video below and be sure to check out Girls on HBO in 2015.