All around the bunker, red lights flashed and a siren blared, shocking each individual in the bunker. Clara and Sam both shot up in bed, gasping at the sudden noise, and looked at each other for a moment before Sam jumped out of bed, pulling on a pair of sweatpants and grabbing a t-shirt. Clara followed suit, wrapping Sams plaid robe around her.

Down the hall, Dean was instantly on his feet, the knife that he slept with under his pillow in his hand as he frowned in shock. He shoved his feet into some slippers and yanked open his door.

Charlie rolled over in bed, crying in surprise as she fell out of her bed. She jumped up, grabbing her tablet, and ran off, tripping over her own feet a few times. She squeaked when Hannah appeared next to her, demanding to know if she was alright before following the hunter out of the room.

Meg rolled off of Castiel, who was breathing rather heavily. He tried to pull Meg back, but her eyes flicked black and she slapped his hand lightly. "Something's wrong, Cas." They dressed quickly and went to find the others.

Crowley looked at his watch, frowning at the time – not exactly the time for a fire drill, so something must be wrong. He laid his glass of scotch on the table and headed out into the main room.

Kevin materialized next to his mother, who had been up late reading. They looked at each other. "This is what happened when the angels fell," Kevin said, frowning.

"Sherlock! Wake up!" Mycroft had entered his brother's room when the alarms went off. Now, he rapped his cane against his brothers sleeping body. "Something's happening!"

"Do I look like I care?" Sherlock mumbled, but sat up, wrapping the blanket around himself and revealing a naked body in bed beside him.

"What the hell . . .?" Mycroft began, and rolled his eyes. "Oh, for gods sake!"

Irene didn't look even slightly put off that she was totally naked. On the contrary, she looked comfortable and radiant.

John appeared in the doorway, tying a robe around himself. "Are you two - three? Never mind, coming or what?" he frowned, heading down the hallway. The Holmes brothers and Irene followed, but not before Mycroft made her put on a robe.

The Doctor was laughing and pouring wine into River's glass. They were both overdressed, the Doctor in his favorite suit and top hat, River in a long sparkling green gown. They were both shocked when Jack entered the TARDIS.

"There's a problem," the captain said, jerking his head back towards the bunker.

Everyone arrived in the main room at almost precisely the same time. The lights on the tables were flashing and an alarm was still going off.

"Charlie?" Dean asked roughly, and the redhead gave a sharp nod and opened a console, typing in a code. The alarm stopped and the red lights stopped flashing.

"What the hell is going on?" Mycroft demanded.

Castiel was frowning at the map with the flashing lights. "These lights are all angel outposts."

"What?" John frowned.

"All of these locations – angel bases on Red Alert. Hannah?" He frowned. "What happened to you?"

Hannah shrugged uncomfortably. "I now have defining traits." She concentrated. "The . . . 'angel radio', as you call it, has been turned off," Hannah reported. "Something is seriously wrong."

"Go," Cas nodded, and the female angel disappeared.

Crowley was on his phone. "Forty? Forty? What were they doing?"

"What's going on?" demanded Dean.

"Those bloody winged monkeys have randomly killed my men!" the demon roared. "You listen to me," Crowley hissed into the phone. "Everyone goes underground now! Except for you. You know what to do." He hung up. "Bollocks!"

"Castiel." Hannah had reappeared. Her face was panicked and she was holding an angel blade in her hand.

"What is it?" frowned Cas.

She shook her head. "Metatron. He's escaped."

"Escaped?!" Dean demanded.

"He slayed one of the angel guards and used his blood to summon a demon," Hannah repeated what she had learned. "The angels are slaying all abominations in an attempt for information."

"Those are my abominations!" Crowley spat angrily. "You're angels are killing my men!"

"And?"

"And call them off!"

"I can't!" the angel snapped. "It is not under my control!"

There was a sudden snarling and barking, and everyone jumped, shocked.

"Crowley!" Dean snapped.

"Buzz off, mate," Crowley snapped. "This is serious." He whistled shrilly and the snarls stopped. "Sic the angel," he said sharply. "Tear him apart and bring me his bleeding head."

"Hellhounds," Sherlock and John said the word together, their hearts racing as the canine presence disappeared.

"Don't worry," Crowley said. "They're mine."

"That makes me feel so much better," John mumbled.

"Ingredients," Crowley said now, turning to the others. "The usual for a summoning. Hop to it, Kev. If you can make those ingredients appear just as quickly as you can make my suits disappear, and I don't mean that in the fun way, we should have had them ten seconds ago."

As he was speaking, Kevin began laying the ingredients on the table. "What's this for, anyway?"

"I need to speak with an employee," Crowley said, mixing the ingredients. "Normally I'd use some blood, but this one happens to be human."

"You have human employees?" demanded the Doctor, and Crowley scoffed.

"I've got everything employees, Doctor."

"Wait, how do you summon them if they're human?" Sam frowned.

"Hush, Samantha. I'm entitled to my secrets." He lit a match and dropped it into the other ingredients. The flames rose high with a hissing noise and turned purple.

The others were shocked to see someone appear in the room. Sherlock analyzed her right away.

She was clad in an all-black, ninja-like outfit, tight on her curves. Her face was concealed in a mask, except for her eyes, which glowed purple for a moment before fading to a pale green, narrowed in anger. Her position was one of defense, as though preparing for a fight, and she had a satchel draped over her. Her belt held a gun – obviously an agent or something similar by the piece – and various pouches. Sherlock could make out different outlines of bullets.

"Give it," Crowley said gruffly, reaching out his hand.

The woman took a step back, her hands covering the satchel. Her eyes suddenly darted to Dean, then Sam. Her shoulders sagged just slightly, and she took a deep breath. She recognized them.

Crowley narrowed his eyes. "Take that thing off," he said lowly. "Go on, love. Show them."

She hesitated, and then slowly grasped the underside of her mask and pulled it off. Sharp features, angry or annoyed or both. Tumbling golden-brown curls. Expensive diamond earrings. These were all things Sherlock took in as soon as the mask was off.

Dean was not as quick. His eyes were wide, and he stared at Sam, who stared back, also looking shocked.

The woman looked mildly amused for a moment. "Hello, boys."

Dean was the first to speak, finally finding his voice.

"Bela?"