Grace (Debra Messing) discovers Will's (Eric McCormack) father, George (Sydney Pollack) is having an affair with a young woman (Lesley Ann Warren) named Tina. Grace tells Will, but he chooses not to believe her. When George is saying goodbye to Will, Tina unexpectedly comes up to use the bathroom. The four end up having dinner while avoiding the situation at hand, which drives Grace batty. After dinner, George tells Will that he's upset that he didn't confront the problem. Will tells his father how he feels.
After Stan cancels a lunch with Karen (Megan Mullally) and she asks Grace for her advice about how to deal with discovering an affair, Karen thinks Stan is cheating on her. Karen and Jack (Sean Hayes) drive around in the limo trying to catch Stan in the act. Karen gets the idea to get a new rich husband, but then decides to go after the girl. Karen ends up thinking Tina is the one having an affair with Stan until Grace sets her straight.