Ann sets Leslie up on a blind date with a rude MRI technician, and Mark becomes jealous because he thinks Ann is saving another prospect for Leslie for herself. Meanwhile, Tom helps Ron find an assistant.
Leslie and Justin try to reunite Leslie's Mom with an old flame for Valentine's Day, only to discover he's a total loon. And Justin's rude behavior during the entire episode causes Leslie to look at him in a new light.
Leslie goes all out to save a gazebo at a mansion on the historical register from being destroyed, while April gets in trouble with Ron when she accidentally schedules 93 meetings for him on the same day.
Leslie struggles to stay awake and fill the overnight hours at a local telethon when Tom and celebrity guest Detlef Schrempf are sidetracked at a nightclub, and the answer to her problems could be a surprise marriage proposal.
The government is shut down and the parks are closed, but Leslie tries to skirt the rules to hold a children's concert in the vacant lot. Meanwhile, will April's jealousy of Ann keep her from getting together with Andy?