Parenthood is questionable for more than one member of the Walker family, as Justin keeps a closely guarded secret about the true paternal identity of one of his siblings and Scotty makes a shocking discovery that will bring a new life into the Walker family fold.

Cast: Dave Annable, Sally Field, Calista Flockhart, Rachel Griffiths, Luke Macfarlane, Gilles Marini, Matthew Rhys, Ron Rifkin, Patricia Wettig, Deirdre Lovejoy, Roxy Olin, Isabella Rae Thomas