Kitty guards a devastating secret that could change the Walker family forever. Meanwhile, Nora and Holly work together to thrown an engagement party for Justin and Rebecca; Tommy remains in Mexico; and Sarah heads to France.

Kitty is devastated when she must face the aftereffects of her cancer treatment. Meanwhile, Nora makes an unexpected friend; and Scotty's father shares some shocking news about his marriage.

Sarah has a new romantic interest for the first time since her divorce; Scotty and Kevin await the results of their first try at surrogacy; Kitty and Robert reach another impasse over politics.

Still reeling from his discovery of Nora’s buried secrets about his childhood, Kevin refuses to attend his own birthday party. Meanwhile Justin, Tommy and Kevin confront Dennis York.