"Can you two stay right where you are? It'll be a few minutes." Leonard asked giving the two children explicit instructions and both nodded. He straightened up and left the room with Howard and Raj and shut the door behind them leaving the two kids inside.

Leonard was the first to speak, "What just happened?"

"Is that really Sheldon and Amy?" Howard asked.

"Yeah, but how… why… what? Why the hell are they tiny!?"

Raj shrugs. "I don't know dude. I really don't know."

"What are we gonna do now?" Howard asked the two.

Leonard sighs, "Well… You two get to the bottom of this, meanwhile I'll call Penny and ask her to pick up some clothing… Then later I'll take them home and make sure Sheldon's old bedroom is ready. I gotta get a bed back in there."

"Wait… You're leaving us in charge of the problem?"

"No! I'm just leaving you two in charge of why this happened. I'm sure there's a webcam in Sheldon's office somewhere. Also, tell Siebert that Sheldon is going to take off till further notice. I have a feeling this might take a while. And I'm gonna call the Neuroscience department to have Amy take off too."

Raj and Howard nodded before they left for President Siebert's office.

Leonard pulled out his phone and calls his wife, Penny.

After a few rings, he hears, "Hey Leonard, what's up?"

"Listen, I need you to do me a huge favor, please?" Leonard begs.

Penny asked, "What favor?"

"I need you to go to a Gap, or A Children's Place, or any kid store in the mall-"

"What's going on?" She asked sounding confused.

He did not know how to answer that… Not right now. "You know what? Just stay at the apartment and don't go anywhere. I'll be home son. Oh, and prepare to be shocked that you'll probably piss your pants." And he hung up leaving Penny confused and a little disgusted.

Leonard opened the door again finding little Sheldon and Amy sitting there in silence waiting.

"Alright listen, later I will have to take you kids to my apartment and stay there for a while. I don't want either of you wandering off alone in the city," Leonard says to them.

Very unsure, Sheldon and Amy don't say anything at all.

"Ok then..."

It was silent the whole car ride home. Amy and Sheldon both looked really scared as Leonard can see from the rearview mirror. He couldn't blame them seeing that they don't remember anything now.

Leonard heads up the stairs to his apartment followed by the children who are really out of breath.

Sheldon asked taking a deep breath reading the second floor, "Why isn't the elevator working?"

"Let's just say some idiot did an experiment which went totally wrong…" Leonard thought back to the day Sheldon saved his life. He smiled at it as he continued climbing up the stairs.

"You should tell somebody," Sheldon said. "I believe it's been broken for a while."

"How do you know that?"

"Because of the caution tape on the door. It looks so old that it could get really worn out the next couple of years if they don't fix it."

Leonard smiled… Same old Sheldon.

They reached the third floor, Amy just leans against the wall for a moment. Leonard noticed this and asked, "Are you alright there Amy?"

She nodded taking breaths.

"Do you want me to pick you up and carry you? It's ok," he says gently.

Amy immediately shook her head violently wrapping her arms around herself.

Leonard then said dismissing the idea as he didn't want to frighten her. "Ok then." He unlocks the door to apartment 4A and heads in calling, "Penny, I'm here."

He sees Penny coming to the front with her arms crossed, with an odd expression. "Leonard, what is going on? Why are you asking me to go to the store?"

"Prepare yourself." Leonard says walking in the apartment with Sheldon and Amy following him.

Penny's jaw dropped when she sees two kids. She asked deadpanned clearly angry, "Leonard, what did you do?"

"Look, it may be as crazy as it sounds but..."

"How could you! I thought we made it clear we weren't going to have kids!" She shouts.

Amy crouches behind Sheldon to hide with tears in her eyes and he takes one step away from her as he still doesn't like any body contact.

Penny cries upset, "Seriously! You just went and adopted without my permission! How could you Leonard!"

And her husband stops her, "Penny! Penny! Listen to me! I didn't adopt them! I had to take them in because-"

"Because why? Where are their parents?"

Leonard shouts, "Penny! Let me explain! Please!"

"Please don't fight," Amy says with tears. Sheldon nods really terrified. "Yes, please!"

Forgetting that they don't like fights at a young age, Leonard assures them in a gentle tone, "It's ok. We're not fighting. It was only a spat."

"No it wasn't," Sheldon shakes his head, "My parents fight all the time on a daily basis."

Leonard sighs, "Listen, I need to talk and convince Penny. So I need you to go to our room and stay there for a second, ok?"

Both nodded and Leonard takes them both to his and Penny's room. He returned to the front seeing Penny standing there with an angry expression, arms crossed and foot tapping on the floor impatiently.

"I'm waiting," Penny said demanding an explanation.

Leonard sighs, "Listen... I was walking with Howard and Raj to fetch Sheldon, but something happened in-"

"Cut to the chase Leonard!" She shouts impatiently.

He looked down taking a deep breath and said, "Those kids are really Sheldon and Amy."

Penny's jaw immediately dropped to the floor in shock. She says, "Get out."

"No really. That's really Sheldon and Amy. They were doing something in the office and-"

"I'm not kidding! Get out! And take those kids with you! I'm not that stupid Leonard!"

"Are you serious! That's really Sheldon and Amy! Hang on, I'll prove it." He calls, "Sheldon! Amy! You can come out now."

Just a few seconds later, the two kids come out to the front.

Leonard says, "Listen, I need to ask you a couple questions. Just simple ones..." He asks Sheldon, "Ok Sheldon? What day are you born?"

"February 26th..."

"What family members do you have?"

"I have a mom, a dad, an older brother and a twin sister," he answers like he's so smart. "Oh! And my Meemaw!"

Leonard gave Penny a "See-what-I-mean" look and she scoffs still not believing.

"Oh! What is your favorite food?"

"Spaghetti with little hot dogs cut up in it!" The child answers with a toothy grin.

Penny's scowl fades suddenly. Must be a different Sheldon.

"Oh! And where are you from again?" He asks the boy.

"Galveston, Texas."

Penny gasped covering her mouth with her hands. "No..."

Leonard crouches down to Amy's level. "Can you tell us where your from Amy?"

In a soft voice, she says, "Glendale..."

Penny says like she can't believe it, "Oh my god."

Very satisfied that she now believes him, he says to the two children, "Alright, you can go back to our room."

"But I want to stay," Sheldon complained not moving.

"Please." Leonard gave him a firm look and the two kids head back down to the bedroom.

He sighs and asks his stunned wife, "You believe me now?"

"Yes... I do." She moved toward him asking, "How did this happen?"

"I told you, I don't know. Raj and Howard are both getting to the bottom of this. That's why I asked you to get children's clothes."

Penny said grabbing her purse. "I'm going to do that right now."

"Wait, hang on! Penny?"

She stops and Leonard said, "They don't know who they really are right now. They don't know us or anyone. They think they were kidnapped or something more... We can't tell them about their true adult selves."

"Why?"

"Have you watched any of the movies similar to this? You can't tell them about their future! They'll think we're crazy!"

Penny thought for a moment before saying, "You're right. You're right. I'll grab some clothes. I know what sizes they wear." Then she gave him a kiss and exits the apartment door.