Summary: "The hills are alive with the sound of music." Or, at least Manhattan is.

The "Sound of Music" sing-along is back in town, and our fab four couldn’t be more excited for it. Grace and Will dress up like Maria and Captain Von Trapp, Jack is in lederhosen, and while Karen isn’t dressed as a "Sound of Music" movie extra, she goes along for the ride. But while Grace, Jack and Karen enter the theatre together, Will is nowhere to be found. It turns out, he ends up at the theatre on 3rd and 9th, not the theater on 39th, which is where the sing-along is being held.

While Will still thinks he’s at the right place, a man named James walks up to him. Mistaking him for an usher, James gives Will his ticket for the 7:40 showing of "Memoirs of a Geisha." Soon after, Will’s cell phone rings. Grace is on the other line informing Will that he’s not where he should be. After hanging up the phone, Will and James get to talking, and Will decides to stay a little longer.

Back at the sing-along, Jack becomes infatuated with Ralph, who runs the concessions counter at the theatre. In true McFarland fashion, he is immediately in love with Ralph. Grace recruits Karen to get seats in the first row of the balcony, leaving her to be alone. After Karen leaves, a mother enters with her three girls and leaves them with Grace, which is just the start of the Grace Adler child care service.

Jack and Karen take their seats. Karen pulls out a flask full of liquor (and just a drop of the soda Jack brought for her). After downing it, she tosses the flask over the balcony, hitting someone below her. The person she hit complains to an usher, who reports it to the manager. The manager makes an announcement over the P.A. system, saying that they will not show the film until they find out who threw the flask, and when they find out who threw it, they will press charges. When Jack and Karen try to make an escape, Karen reveals that her name was on the flask, and now they don’t know what to do.

While taking care of the now seven children left with her, Grace discovers that they have never seen the movie. She decides to teach the children the songs of ”The Sound of Music.” After teaching the kids one song, she calls Will, who is still talking to James, telling him about Karen. After Will hangs up, James realizes he’s ten minutes late for his movie. They say goodbye without exchanging numbers or any mention of meeting again.

Will finally arrives at the sing-along. They try to find Karen, who is nowhere to be found. They suddenly spot her as the last in a line of nuns that walk by. Will decides to go talk to the manager. When he comes back, he has Karen’s flask, but he threw paper clips in the manager’s face in order to get it. The whole gang is in danger (Grace because the manager heard her singing), until Rosario comes to the rescue, dressed as mother superior. She leads them to a closet to hide.

Soon after hiding, they are discovered by Ralph, who turns on Jack and tries to hand them over to the manager. They run out of the building just as James enters to try to find Will. But it seems that Will left a little too early, and James is not able to catch him.

Quotes
GRACE: Do you think people can tell I'm Maria, even though I don't have my Captain Von Trapp?
KAREN: Of course, honey. You make a perfect Maria. You're sweet and perky, and you're obviously not cut out to be a nun.
[GRACE STOPS SMILING.]
KAREN: Because you're a whore.
GRACE: Thanks, Karen.
KAREN: And a Jew.
GRACE: Yeah, I got it!