Early in the morning, Ronnie Anne wakes up to the sound of Sergio, and says that today's the one time of the month that Maria finally has a day off. After greeting her mother as she wakes up, Ronnie Anne presents her list of things that she wants to do with Maria for the day, and Maria is reminded of the promise she made to spend with Ronnie Anne.
After Maria gets herself ready, Rosa is concerned that Maria will be too tired to stay awake, considering how much time she spends as a nurse. Maria, however, states that she'll be fine. However, before Ronnie Anne and Maria can spend their day together, Maria is faced with situations that require her, such as...
These constant requests make Ronnie Anne snap, and tells everyone that she just wants to spend the day with her mother, and everyone promises to leave Maria alone so she can spend her day off.
Ronnie Anne and Maria exit the apartment building, and prepare to head to the theater to watch a movie. As the two wait for the subway to arrive, Maria is starting to show signs of being tired. When the subway arrives, Ronnie Anne accidentally boards the train holding a stranger (it turns out Maria completely fell asleep on the bench). Arriving at the next stop, Ronnie Anne makes the assumption that Maria is at the previous stop. Back at the first stop, Maria is woken up by a pigeon drinking her coffee, and discovers to her horror that Ronnie Anne and her phone are missing. She assumes that Ronnie Anne is at the next stop, and boards the train, just as Ronnie Anne arrives back to the first stop. After exiting the subway, Ronnie Anne and Maria end up going around town hoping to find each other (and on a couple occasions, bumped into lookalikes of each other). After several hours of trying to find each other, Maria arrives back to the apartment building and calls Ronnie Anne via landline to tell her to come home.
Arriving back home, Ronnie Anne and Maria apologize to each other for ruining their day together, explaining that they had had problems that got in the way. Suddenly, the Casagrandes attempt to ask Maria for her help, but Ronnie Anne tells them that Maria is too tired at the moment, as she sleeps in Ronnie Anne's bed.
When nighttime comes, Maria is prepared to head to the hospital, and thanks Ronnie Anne for letting her relax. When Maria brings up that someone swallowed a wrench, Ronnie Anne is impressed, and Maria suddenly gets the idea to bring Ronnie Anne along, since it means that they can spend time together.