NORA AND ISAAC TAKE THEIR RELATIONSHIP A CRITICAL STEP FURTHER, ON ABC'S "BROTHERS & SISTERS"

"The Missionary Imposition" � A surprise visit from Jason forces Kevin to rethink his future and his romantic life, while Nora and Isaac grow more content in each other's company, on "Brothers & Sisters," SUNDAY, FEBRUARY 10 (10:00-11:00 p.m., ET), on the ABC Television Network.

"Brothers & Sisters" stars Dave Annable as Justin Walker, Maxwell Perry Cotton as Cooper Whedon, Kerris Lilla Dorsey as Paige, Sally Field as Nora Holden, Calista Flockhart as Kitty Walker, Balthazar Getty as Thomas Walker, Rachel Griffiths as Sarah Whedon, Rob Lowe as Senator Robert McCallister, Sarah Jane Morris as Julia Walker, Matthew Rhys as Kevin Walker, Ron Rifkin as Saul Holden, Emily VanCamp as Rebecca Harper and Patricia Wettig as Holly Harper.

Guest starring are Danny Glover as Isaac Marshall, Luke Macfarlane as Scotty Wandell, Emily Rose as Lena Branigan, Denis O'Hare as Travis March, Steven Weber as Graham Finch, Eric Winter as Jason McCallister, Dana Lee as Simon Lao, Andy Mackenzie as Flatline Jack, Holly Maples as the moderator, Kevin Daniels as Sam, Tamara Gorski as Yvonne Kalo and Evelyn Reese as the elderly woman.

"The Missionary Imposition" was written by Daniel Silk and Brian Studler and directed by Michael Morris

"Brothers & Sisters" is broadcast in 720 Progressive (720P), ABC's selected HDTV format, with 5.1-channel surround sound and Spanish subtitles via secondary closed captioning. This program carries a TV-PG,D,S parental guideline.

This episode of "Brothers & Sisters" will be available on ABC.com the day after airing on the network for users to watch online. Also, check out the new weekly video blog, "Brothers & Sisters: Writers Room" on ABC.com, which will give online viewers an exclusive look inside the series from the show's writers.