On a church camping trip, Debbie reveals that her mom is really in a rehabilitation center and is an alcoholic. Everyone has been led to believe that Mrs. Colbert has been away on business since they moved into Plains Estates. Why now is Debbie sharing this secret with her friends? Her mom is coming home and her family will have to begin to confront not only their lies to the community but also their innermost fears and emotions. The Walkers are faced with the most difficult decision of their life. Should they tell Tammy that she is adopted now that her birth mother wants to meet her? How will this affect their family? Tammy's birth mother is happily married now and making a good living. Does she really want her child back? Will the return of Tammy's mother break up the Walker family?