In the fifth-season finale, a surprise guest shows up at Sarah and Luc’s wedding; and Kitty faces a tough decision. Directed by Ken Olin

Sarah faces off with Brody over a long-held secret, which creates a major dilemma for Nora; Olivia struggles to adjust to a new family dynamic.

Justin guards a secret about a sibling’s true paternity; Scotty learns there may be another member of the extended Walker family

Nora decides to follow her heart with Brody, though it’s not a popular decision among her kids; Sarah and Luc mull adding to their family; Scotty’s chance encounter with his and Kevin’s former surrogate (Roxy Olin) makes him wonder where’s she’s been.

Saul and Nora find out their mother has died.

The family tries to determine what is best for Olivia when her brother tries to gain custody.

Nora and Sarah use Evan’s birthday as an excuse to fly out east and find out what is going on with Kitty; Olivia seems nervous about her new life with Kevin and Scotty.

Though Nora tries her best to keep Brody (guest starring Beau Bridges) at bay, she can’t help but feel the long lost connection between them, and Justin reaches out to a homeless vet reluctant to accept help getting back on his feet

The Walkers’ plans to celebrate Valentine’s Day go horribly wrong when Tommy tells Sarah about another secret that Nora has kept buried since they were kids, and Saul’s hopes for a romantic evening with Jonathan (Richard Chamberlain) are dashed by a visiting high profile food critic

Tommy’s new girlfriend’s interest in Walker history bothers the family.