THE WALKERS HARKEN BACK TO THE FAMILY'S EARLY DAYS TO GET TO THE ROOT OF WILLIAM'S BURIED SECRET OF NARROW LAKE, ON ABC'S "BROTHERS & SISTERS"

Colin Egglesfield, Kay Panabaker, Anna Wood, Cody Longo, Kasey Campbell and Dylan Larsen Guest Star as the Young Walkers

"Time After Time," Parts 1 & 2 � In an effort to get to the root of the secret that William's nemesis, Dennis York, holds over their heads, the Walkers recall their memories, both good and horrifying, of their family's days at Ojai Foods in 1986. Then, as they continue to flashback to their younger days, they finally recall the shocking secret and the shameful cover-up that led to York's power play, and are forced to deal with the remorse of a tragic event. Meanwhile, Nora and Holly take an uncharacteristic trip, a la "Thelma & Louise," to search for answers about Ojai's hidden worth, and Justin and Rebecca finally get their happily ever after, on a two-hour episode of "Brothers & Sisters," SUNDAY, APRIL 11 (9:00-11:00 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 Tommy Walker, Rachel Griffiths as Sarah Walker, Luke Grimes as Ryan Lafferty, Luke Macfarlane as Scotty Wandell, Rob Lowe as Senator Robert McCallister, Matthew Rhys as Kevin Walker, Ron Rifkin as Saul Holden, Emily VanCamp as Rebecca Harper and Patricia Wettig as Holly Harper.

Guest starring in Part 1 are Peter Gerety as Dennis York, Daniel and David Oshionebo as Evan McCallister, John Ross Clark as the judge, Colin Egglesfield as young William Walker, Kay Panabaker as young Kitty Walker, Anna Wood as young Sarah Walker, Cody Longo as young Tommy Walker, Kasey Campbell as young Kevin Walker, Dylan Larsen as young Justin Walker, Dan Watkins as Patrick Shuman and Tyler Neitzel as young Aaron. Part I was written by Sherri Cooper Landsman and Jennifer Levin and directed by Ken Olin.

Guest starring in Part 2 are Peter Gerety as Dennis York, Christopher Thornton as Aaron, Elena Campbell-Martinez as the housekeeper, Kasey Campbell as young Kevin Walker, Andre M. Johnson as the sheriff, Mickey Maxwell as the deputy and Kay Panabaker as young Kitty Walker. Part 2 was written by Alison Schapker and Monica Owusu-Breen and directed by Ken Olin.

"Brothers & Sisters" is broadcast in 720 Progressive (720P), ABC's selected HDTV format, with 5.1-channel surround sound. A TV parental guideline will be assigned closer to airdate.

For more information on "Brothers & Sisters," visit ABC.com.