How do you deal with it when your single parent goes on vacation and comes back married? Well, you deal with it Step by Step! When two single-parent families join to form one big bunch, there's a lot of adjustment and a lot of laughter. Join the Lamberts and the Fosters as they struggle through the ups and downs of eight very different personalities living under one roof as a new family. Stars Suzanne Somers and Patrick Duffy in 6 episodes from this family comedy series, including the pilot and 2 Christmas episodes.