Thanksgiving on Wisteria Lane finds Gabrielle and Carlos hosting Carmen, Hector and Grace to a bountiful feast. But the Solises discover some surprising news about the Sanchez family that could threaten their time with Grace. Meanwhile, Bree invites Keith's parents (guest stars John Schneider and Nancy Travis) to partake in Thanksgiving at her house and learns some family secrets, and Susan butts heads with Lynette over her sleep training techniques for baby Paige. Renee continues to remind Tom about their past, and Beth (guest star Emily Bergl) tries to uncover more about Paul's past misdeeds.