Will convinces Grace that her boyfriend, Noah, isn't in the wrong by refusing to let her meet his daughter, Katie. When Grace goes to apologize to Noah, she unintentionally meets Katie. Meanwhile, Will's mom, Marilyn, visits after the death of her beloved dog, and becomes upset when she doesn't get the emotional support she expects from her son. And Jack gets into an argument with his rec center boss, Theo.

Malcolm enlists Grace to help him win back Karen's affections. Will's flirtation at work lands him in an ethical dilemma. Jack's passion for performing is reignited by a chance encounter with Zusanna, the sister of his former acting teacher.

After her dad, Martin, is rushed to the hospital, Grace is shocked when he refuses a transfusion of Will's blood. Will's mom, Marilyn, uncharacteristically takes Martin to task. Karen's demands cause Jack to uninvite her to his wedding.