When Tim allows Sara to bring her dog inside despite knowing his severe allergy, the situation quickly escalates. Lily, Tim's wife and pregnant with his child, confronts him angrily, warning that his allergy could be fatal. Tim insists Sara return the dog and dismisses the danger, prompting Lily to demand he leave and refuse to see him. Meanwhile, Sara overhears a conversation mocking her low status and plotting to reclaim Tim by divorcing Lily, revealing a brewing rivalry. The episode ends with a tense confrontation between Lily and Sara, leaving their conflict unresolved.