Justin suddenly takes a much more keen interest in Holly's recovery after a nurse (guest starring Odette Yustman as Annie) at the hospital catches his eye; Nora's fellow radio host, psychiatrist Dr. Karl, finds his way into Nora's heart when he helps Sarah and Kitty resolve some old sisterly squabbles; and Paige helps Kevin and Scotty find forgiveness.

The relationship between Justin and Annie gets more serious as he brings her to a family dinner. Nora has doubts about him being ready for a serious relationship since he just broke up with Rebecca.

A scandal like no other hits the Walker family which causes Kitty to over-think her future.

In this 99th episode the family looks back to the events who made them who they are now. Tommy returns with surprising news, while his siblings all have to make very difficult choices. Kitty needs a break from her Life.

The Walkers are excited when Tommy comes down for a visit, but his new girlfriend's enthusiasm for Walker family history rubs the family the wrong way.