Isabella Rae Thomas

Justin keeps a secret; Scotty makes a discovery that changes the Walker family.

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

As Sarah and Luc's wedding draws near, the Walker's learn the true meaning of family.

After confronting Brody, Sarah decides she doesn't want him to be a part of her life; Olivia struggles with a new addition to the family.

Nora gives in to her feelings for Brody; Luc and Sarah consider expanding their family; Scotty runs into Michelle.

;Nora and Saul find out that their mother Ida has died; Sarah and Luc struggle with marriage planning.