Back at the hospital, Penny was starting to come out of her coma. She was moving around, groaning, until finally she woke up with a scream. She then noticed the room she was in, and her glowing appearance.
"What am I doing here?" she asked herself. "Why am I glowing? Where's Leonard?"
She got out of her bed, and stormed outside of the room. One of the doctors noticed her walking away and tried to stop her.
"Wait," said the doctor. "You can't leave! You're not all well."
"Where's Leonard?" she said.
"Mr. Hofstadter said that he was going to take Ms. Koothrapali home," he replied.
"Priya?" she exclaimed. "Oh, that little rogue is dead to me!"
Suddenly she had a funny feeling in her stomach. She fell to her knees and groaned.
"What's happening?" she said.
Then there was a rumble all around the hospital. The doctors, visitors, and patients started to become worried. Penny was suddenly growing taller and taller! Her gown tore off and she busted through many floors in the building as she grew, till finally she stop at 50 feet.
"Oh my God!" said Penny. "I'm huge! I am gonna get that geeky bastard for leaving me! But first I need some clothes."
She grabbed two sheets from the hospital and used them as a top and bottom. Then she broke out of the hospital where she began her rampage to find Leonard and Priya. People began to notice the monumental female and started panicking throughout the streets.
Meanwhile back at the woods, Sheldon, Howard, and Raj were still battling the giant alien. The alien was covered in paintball spots all over on his body. He continued to pursue the three as they fought and fought. Then the alien turned his head and noticed Penny in the city. He smiled, and ran off to get acquainted with her.
"Hey, where are you going?" Sheldon shouted.
"Look!" said Howard. "It's Penny! She's now as tall as the alien!"
"Funny," said Raj. "She looks like something out of a '50s Sci-Fi B movie."
Back at the city, people were continuing to run around the streets. Penny was making her way to her apartment building because she assumed that Leonard was there.
"It's okay, people!" Penny said to the panicking crowd. "You're not in danger! I'm just after one person."
Then she noticed some guys underneath her looking up.
"Hey! Don't look up my skirt!"
The guys jumped a little, and ran off. Then Penny saw in the distance the alien coming towards her. He finally made it and was now face to face to her.
"What do you want?" she said.
All the alien did was said "I love you" in sign language. Penny got offended, and kicked the alien in the groin. He fell on his knees and groaned from the pain. Sheldon, Howard, and Raj witnessed it.
"What happened?" Howard asked.
"The alien is defenseless and in pain," said Raj. "It was beauty that kicked the beast."
"What do you suppose she's going to do next?" Sheldon asked.
They heard Penny shouting Leonard's name, and they pretty much knew what her motivation was.
"We better get moving!" said Howard. "She'll tear up the city until she finds Leonard."
"And then she'll tear up Leonard," said Sheldon. "That reminds me, I need him to invoke the Godzilla clause in our roommate agreement. I know this time it's a giant female and we are not in Tokyo, but this is close enough."
They all ran into Raj's car and sped into the city to stop Penny's rampage. The alien got up slowly and started to make his way back to his ship. As he came near his ship, he turned to the city with tears in his eyes from the pain and waved at Penny. Penny just scoffed and flipped the bird at him. The alien went inside his UFO. The satellite-shaped vessel took off, implying it may never come back again.
Raj was speeding through the city avoiding any people that might get in the way. They then saw Penny coming towards her apartment building. Raj parked his car, and they all got out with their paintball guns and walked with caution towards the giantess. Penny bent down a little and looked through the window of Leonard and Sheldon's apartment. Leonard and Priya weren't there.
"I'll shoot a couple of paintballs at her and distract her while you two go warn Leonard and Priya," Howard said to Raj and Sheldon.
"Leave it to me," said Sheldon. "I am a much better shot."
Sheldon walked up to the unsuspecting Penny and aim his gun at her back.
*ptoo* *ptoo* *ptoo*
"Penny!"
*ptoo* *ptoo* *ptoo*
"Penny!"
*ptoo* *ptoo* *ptoo*
"Penny!"
Penny turned around and looked down to find the three, looking nervous and shaking.
"Guys, what are you doing?" she said.
They hesitated for a moment until Sheldon said, "Run!" And so they did. Penny came after them and grabbed them in one hand. As she moved her hand full of nerds to her face, Sheldon and Howard were begging her not to do whatever the giant monsters did in the sci-fi movies. All Raj could do was squeak quietly. But all she did to them was placing them on top of the apartment building.
"That'll keep you occupied," she said. "Now if you'll excuse me, I'm going to find your little friend and strangle his little neck."
And she stormed off back into the pandemonium to Raj's apartment.
"We better stop her!" said Howard.
They all ran to the door and tried to pull it but it was locked. They knocked constantly on the door, trying to get somebody to come and open it. A forty-something man opened the door, looking confused at the three.
"Thanks, Mr. Archer," said Sheldon.
"Um, you're welcome Sheldon," said Mr. Archer. "But what was with all the constant knocking?"
"We have no time!" said Sheldon. "We have to move out!"
"That giant blonde," said Mr. Archer. "Is that Penny?"
"Can't explain now!" Sheldon shouted, as he and the others ran down the flights of stairs.
Meanwhile Leonard was sitting down on the sofa in Raj's apartment, waiting anxiously for Priya's surprise. He was completely unaware of Penny's growth, and the chaos in the city. Priya stepped into the living room, wearing a nighty. Leonard started to ogle her, and she just grinned at him.
"So are you ready?" she asked seductively.
"Bring it to me," said Leonard.
They started making out on the sofa. But while that was going on, Penny reached the apartment and look through the window to find the two.
"You rat bastard," she said under her teeth.
She began to lift up the roof off of the building. Leonard and Priya got startled by the sound and rumble.
"What's that?" said Priya.
"I don't know," said Leonard.
Then they heard Penny shouting out Leonard's name. Finally, Penny has torn off the whole roof. The two were frightened. Priya hid underneath the coffee table for protection, but Penny dropped the rumble onto the table which crushed Priya under. Leonard was devastated by the sudden death of his girlfriend. Penny then extended her arm and grabbed Leonard.
"Penny, please!" Leonard shouted. "Put me down! I'm sorry I left you there! Please understand!"
Sheldon, Raj, and Howard finally arrived at the apartment and found the giant Penny with Leonard in her grasp.
"She's got Leonard!" said Raj. "My apartment! She's tore up my apartment!" He ran up the stairs to his apartment to see how much damage was made.
"I know Leonard is pretty short," Howard said, "but he looks like a doll in Penny's hand."
"Only it's for real and not some cheap effect from a '50s B movie," said Sheldon.
Raj rushed back over to Sheldon and Howard. He looked grief-stricken. "My sister's dead!"
"Who knows what Penny will to do to Leonard," said Howard.
"Look! There's a telephone pole in the direction they're going!" Sheldon exclaimed. "I could shoot a paintball to that pole, creating a voltage that'll send Penny back and maybe fall over."
"Let me do it," said Raj. "I feel like this duty should go to me."
Raj stepped forward near the telephone pole, but kept a good distance away from Penny. As he got out his paintball gun, he aimed with a determined look in his eye.
"Priya, you shall be avenged!"
With a single shot, the paintball hit the voltage box on the pole creating very bright electric shocks. The boys were almost blinded by the bright sight, while people observed the sight from the city.