Plot

Leonard and Penny give Sheldon and Amy a baffling wedding gift.

Sheldon and Amy are back from their honeymoon, and are in the process of opening their wedding presents when they come across Leonard and Penny's gift which the card states is the "perfect gift for the perfect couple". The problem for Sheldon and Amy is that they have no idea what it is and don't want to ask Leonard and Penny being their best friends who put so much effort into giving them what they consider the perfect gift. Sheldon and Amy go on a literal and figurative scavenger hunt to figure out what the gift is, which is indeed the perfect gift, at least from Leonard's perspective. Meanwhile, Stuart and Denise have not broached the subject of making out at the wedding, they who are now tip-toeing around each other. Taking a chance, Stuart does ask her out, to which she accepts. In preparing for the date, Stuart goes a little overboard. And Stuart and Denise's date makes Raj come to a conclusion about his life, to which he takes what he believes is the appropriate action.—Huggo

At take-out dinner in Apartment 4A, the Coopers are now feeling like a real married couple seen on television and not like Amy's arguing parents. They returned from their honeymoon and bought everyone an "I "heart" NY" t-shirt which they ordered from Amazon after boarding their airplane. Sheldon suggests that the t-shirt also could be used if the owner likes singer Neil Young or Egyptian Olympic tennis silver medalist Noha Yossry or even Japanese anime voice actress Nana Yamaguchi (Raj's suggestion).

In apartment 4B, Sheldon and Amy are writing thank-you notes for their wedding presents. In his note, Sheldon is complaining to Amy's Aunt Helen how much his hand hurts after writing sixteen notes. The next present is from Leonard and Penny whose note says that it's the "perfect present for the perfect couple". They present a glass with a round knob on the top. Sheldon thinks that it's candy, while Amy shakes it to see if it does anything else. Then she wonders if the glass rod was a marital aid.

At the comic book store, Stuart (Kevin Sussman) and Denise (Lauren Lapkus) are working and discussing Superman's shorts while laughing together. Raj actually saw them making out at Sheldon and Amy's wedding. Before Denise leaves they don't succeed in hugging, but they do pat each other on the head. Stuart wonders if he should ask her out. Raj wants him to.

Lying in bed, Sheldon and Amy can't stop thinking about Leonard and Penny's present. The item was supposed to be the perfect present which Sheldon thinks would have been a dinosaur fossil or a pocket watch. Amy doesn't want to ask them because it would hurt their feelings. Amy suggests that they tear apart the gift box and look for clues.

As Stuart works in the kitchen, Bernadette wonders what is wrong with Stuart's face. He's smiling. She comments how happy he looks and Stuart admits that Denise agreed to go on a date with him. Howard tells him to wear clean undies and be well groomed down there, while Bernadette leaves not wanting to be part of their manly discussion.

Sheldon enters Leonard and Penny's apartment to hand deliver their thank-you note for their "very thoughtful gift." When asked if they liked it, Sheldon said that they liked it a lot more than things that aren't it. Then Sheldon asks what they were doing when they chose it. Leonard asks him if he knows what it's for. Penny dismisses her husband saying that Sheldon is the smartest man in the world so he knows. Sheldon is going home to use their gift in the manner it was intended to be used. Afterwards, Leonard mentions that he'll never figure it out and that that makes him happy. From the hallway they hear Sheldon shouting "What are you?"

Sheldon and Amy think that it is a clue to a scavenger hunt. Howard then says that if Sheldon thinks that he and Amy have to run all over town for a couple of days looking for the next clue, then he HAS to say yes. Sheldon is overjoyed and leaves as Leonard and Raj join Howard. It is really a dumb crystal wand that Howard and Bernadette gave him and Penny for their wedding. Raj is incensed that Howard gave away the crystal Chakra wand that he gave Howard as a wedding present.

The Coopers take their gift to Bert (Brian Posehn) the geologist who thinks that being on a scavenger hunt is exciting. Bert tells them that the object is made of quartz. Sheldon then Googles quartz to find out more about it. The word comes from a German variation that has no T in it. No T. Amy asks, "What is not "T"?" Coffee! Then they head to the coffee shop where they first met eight years ago.

At the comic book store, Stuart wants Raj to check out his scent prior to his date with Denise. Raj has gone out with more women than any man he knows. Raj then adds that Sheldon is the smart one, Howard is the funny one and he is the ladies' man. And Leonard? He's the forgettable one. Raj recognizes the cologne as Paco Rabanne.

Sheldon and Amy enter the coffee shop and check out the table that they first used. Amy goes to check behind the counter. Amy is now checking out the lost and found box. "Why?" asks Sheldon. Because they were both once lost and they found each other! Inside they found a crystal locket which thrills Amy. The locket is empty which Sheldon feels they have to fill with memories. Amy thinks that it's the best wedding present ever! Sheldon takes a pair of sunglasses because he thinks that their future's so bright.

In their kitchen, Howard comes across a picture that Halley made at daycare that he calls "pretty good." Stuart is heard and he states he has something to show them but they can't laugh. The two promise and he comes in colored orange, to their shock. He explains this was because he had a problem with his spray tan. Now it doesn't want to come off. Stuart is frantic, since he is supposed to pick Denise up in an hour and needs to know what to do. Howard pokes fun by asking him "Don't you mean what are you going to "Oompa Loompa Doompety do"?. Bernadette suggests that Stuart put off the date, as he mentions his eagerness for it and she tells him to just go on it telling her what happened and she might be flattered with his gesture.

Raj is doing a Skype call with his father Dr. V.M. Koothrappali (Brian George). He appreciates the call on his birthday which Raj had forgotten. Raj adds that his perfect gift is for his son to marry an Indian woman like he always wanted. His father thinks that that is great news and wants to know who it is. Raj corrects him saying that he is tired of being single and he wants his father to arrange a marriage for him. He shows Raj a picture of a beautiful young Indian woman that gets Raj excited, but that is the woman that his father is dating. Dr. K wonders if she has an older sister.

Amy is showing Leonard and Penny the locket that she has put small pictures of her and Sheldon in. Sheldon thanks them for the three gifts they gave them, the locket, the scavenger hunt and the realization that Sheldon and Amy can doing anything as long as they work together. So the Coopers wrote them a special thank-you note in ancient Sanskrit that Leonard and Penny have to decipher together. Also they can't use the Internet to cheat because they have been locked out of their Wi-Fi and the answer in Sanskrit is their new password. Leonard no longer feels happy about their gift to the Coopers. Raj then runs in explaining that he is getting married because his father found him a bride. Her name is Anu, she is in her 30s, works in hotel hospitality and he thinks it will work if he can get through six to ten dates without his true self coming through.

Denise opens up her door and exclaims "Wow" after seeing the orange Stuart. He admits to a series of bad decisions in preparing for their date. He asks Denise if she wants to go through with the date, something she still accepts. She adds they could go out and find Nemo. She also wonders if the other 63 crayons know he is missing. Stuart asks if she is going to do that all night. Then Stuart asks if she'd like Chinese food. Denise replies Sure, especially Chicken Ala Orange.

Title reference: Sheldon and Amy's journey to figure out the meaning of the wedding gift.