Episode #315 "Good Neighbor Sam"

When Grace realizes that Sam, the Kellys' neighbor and the kids' good friend, has been spending more time at her house than at home, even staying overnight without permission, she decides to investigate. When she pays a visit to Sam's mother Katherine, the "Martha Stewart" of the neighborhood, she finds that Katherine is suffering from severe depression. Wade discovers that his name has been mistakenly placed on the Viet Nam memorial in Washington and instantly is convinced that it's an omen that he's going to die. Grace urges Katherine to get help for her depression, if not for her own sake, for Sam's, but Katherine is in complete denial. And Grace and Sam have a talk, and she lets him know he's welcome at her house anytime.