Brothers and Sisters - Season 4 - Eps 5: Last Tango in Pasadena
The Walker family, with the exception of Nora, are surprised by the charms and tango lessongs of Luc Laurent, Sarah's new lover. However, Nora quickly uncovers that her French houseguest is a very good comfort during a very difficult time. Meanwhile, Robert needs to distract Kitty from the cancer, and he uses his most romantic efforts into the situation.
About Brothers and Sisters

Title: Brothers and Sisters
First Air Date: 2006-09-24
Last Air Date: 2011-05-08
Status: Canceled
Rating: 7.1/10 (from 182 votes)
Language: EN
Seasons: 6
Total Episodes: 109
Network: ABC
Genres: Drama
Production Companies: ABC Studios, AfterPortsmouth Productions, Touchstone Television, Berlanti Productions
Synopsis
The close-knit Walker family deals with struggles and triumphs.
Cast

Dave Annable
Justin Walker

Sally Field
Nora Walker

Calista Flockhart
Kitty Walker

Rachel Griffiths
Sarah Walker

Matthew Rhys
Kevin Walker

Ron Rifkin
Saul Holden

Luke Macfarlane
Scotty Wandell

Gilles Marini
Luc Laurent

Patricia Wettig
Holly Harper