The Camden chaos continues with Matt (guest star Barry Watson), who is trying to salvage his marriage, questioning whether he still has feelings for his ex-girlfriend Heather (guest star Andrea Ferrell); Simon's (guest star David Gallagher) return to Glenoak creates conflicted feelings for his ex-girlfriend Cecilia, who is torn between her feelings for Simon and her current boyfriend Martin; Ruthie's foreign exchange student friend Maria (guest star Samantha Sandoval), appears to be making the moves on Ruthie's boyfriend Peter; and grandparents-to-be Eric and Annie hop a plane for New York, despite Mary's (Jessica Biel, who does not appear in the episode) repeated pleas for her family to stay away during labor.