Pulling up to the metal gate, Dean stared forward silently. With a sigh, Sam leaned across and smiled.

"Hey. We're here to see Mick. We're.." he started, before being interrupted by the guard.

"I know who you are," the man said sharply, nodding to the other guard to let them through. "They're waiting for you in the main room."

Before Sam could thank them, Dean sped through the opening gates and made his way to the parking lot. He hadn't said much the entire drive down; Sam knew he was still mad about his little brother going behind his back and working with the British Men of Letters, even if he wouldn't admit as much. It made Sam feel guilty, knowing that Dean felt this way. It was the same reaction he'd had when they found out Mary was working with them, though less severe.

Eventually finding a spot, Dean pulled in and put the impala in park before getting out and slamming the door a little harder than necessary.

"So what did they say they needed us here for?" Sam noticed the annoyance in his brother's voice when he said us, frowning. "Have they figured out how to eradicate all the ghosts now? Maybe it'll be demons this time. Crowley would just love that..."

"I don't know, Dean," Sam replied with another sigh, following Dean through one of the doors into the bunker. "Mick just said it was important."

Giving a short laugh, Dean shook his head and continued down the hall, coming to the door of the main office of operation. Knocking on the door, they waited. It only took a couple of seconds before the door was pulled open by their mother, Mary.

"Hey mum." Dean said, pulling her in for a hug and smiling for the first time in days.

"I take it the drive here wasn't too terrible?" she queried, releasing Dean so she could hug Sam. "Sorry this was such short notice."

"It's fine, we're happy to help." Seeing Dean was about to argue, Sam shot him a warning look.

Looking around, they saw Mick arguing with Arthur Ketch in his office, brandishing a piece of paper at him; things were clearly getting heated. There were a few new faces around; they'd had to call in new staff after the vampire incident. No-one they knew, though a mess of red hair belonging to the stranger at the computer hit Sam with a pang of familiarity.

Having finally seen the arrival of the Winchester brothers, Mick slammed the paper on his desk and composed himself, smiling welcomingly as he joined the rest of them, Ketch following closely behind him.

"Thanks for coming, lads," Mick said, holding out a hand to them, which Sam shook and Dean ignored, looking around. "We wouldn't have called you out here if we didn't need the extra help, as I'm sure you're both aware." He looked from Sam to Dean, lifting a brow questioningly. "We think something big is going down regarding Lucifer."

This caught Dean's attention. They had recently found out that Crowley had, instead of sending Lucifer back to the cage, imprisoned him in his vessel and was keeping him prisoner. Unfortunately, as clever as the King of Hell thought he might be, the Archangel was cleverer; Crowley had underestimated how much support Lucifer still had in Hell. Almost a full army of demons had come to Lucifer's aid and had freed him. Crowley had gone into hiding, the embarrassment of losing out to Lucifer again too much to bare right now. Castiel was currently working with the angels to try and find out where Lucifer was hiding, though none of them trusted each other enough to truly work together properly.

"Have you found him?" Dean asked, his gaze burning into Mick intimidatingly.

"Possibly." he replied, keeping his cool. "We've had some intel come our way that he's set his sights high again, though not quite the President this time."

"So who do you.. or they... think it is?" Sam said, joining Mary and Ketch at the table, Dean joining them reluctantly.

"We're not one hundred percent sure yet but we know it's someone in the government," the charming voice of Ketch responded, much to the annoyance of Mick. "We recently employed one of the most genius hackers to our ranks and she's infiltrating their records as we speak."

Sam and Dean exchanged a look. A genius hacker? They both looked toward the red-headed stranger and stood up. It couldn't be... could it?

Watching the chair turn slowly, the girl gave an awkward smile and waved once.

"'Sup, bitches?"

The boys stood, frozen to the spot, as she rose from her chair and cautiously made her way toward them.

"Charlie..?" Dean managed to choke out, his eyes wide. Sam gave a shocked laugh as he watched her.

"Surprise!" she said quietly, giving them jazz hands.

Sam finally found the ability to move again and closed the distance between them, squeezing her as tight as he could, trying to let her know how sorry he was without words. The guilt that had stemmed from her death still ate away at him after this long and seeing her again, alive, it brought it all back. As he let her go, he stepped back to let Dean hug her, wiping his eyes on his sleeves; he hadn't even realised he was crying.

"So... uh... you three know each other then..?" Mick said, looking from Ketch to Mary in confusion, Mary shrugging and watching the boys in amazement.

"Yeah we do," Dean said gruffly, an arm still around her, scared she might disappear if he let her go. "What are you doing here, Charlie?"

"Well... it's kinda weird..." she shrugged. "One minute, I'm in my room and my mum is reading to me and then next minute... poof! I'm stood in front of the gates of this place! Turns out these guys were looking for hacker and I was in the right place at the right time!"

She smiled at Sam and Dean as they stood silently, trying to process what was happening. Mick kept looking at Mary for an explanation but she couldn't give him one. Placing his hands on the back of one of the ornate chairs, Sam leaned forward and took a breath.

"But... Charlie... you died..." he said quietly, struggling to keep his voice from cracking. "We saw you... we burned your body... it was my fault... I'm so..." Gripping the chair hard, he couldn't continue, closing his eyes to calm himself down.

"I... died...?" Charlie responded, shocked. "Woah... well... woah..."

Dean chuckled and squeezed her shoulders before letting go and beginning to pace, clearly thinking hard.

"But how are you here?" Sam said quietly. "Don't get me wrong, I'm thrilled, but I just don't understand who brought you back.."

This seemed to trigger something in Dean and he suddenly looked furious.

"CAS!" he yelled, looking around.

The soft whoosh behind them signalled the angel's arrival.

"Hello Dean," said the familiar voice. "Charlie...?" Castiel sounded just as confused at they were.

"Hey bestie.." she smiled at him as Dean closed ranks.

"Do you have anything you wanna tell us, Cas?" he asked, agitated. Castiel raised a brow and thought before answering.

"No..." he replied slowly, confusion still apparent in his tone.

"Then why is Charlie stood here, alive and well, when she died three years ago?!" Dean shouted.

"Dean.. calm down.." Sam started, only to be interrupted by his brother.

"No, I will not calm down!" he retorted, getting more agitated by the second, his angry gaze not leaving Castiel for a second.

"Are you implying I had something to do with this?" the angel asked, furrowing his brow.

"You're damn right I am!" Dean replied, folding his arms across his chest. "You brought me back. And Sam!"

"But we were both still alive, Dean." Sam said.

"Shut up, Sam." Dean said shortly, waiting.

"I can assure you this had nothing to do with me. I don't have that kind of power." he responded, almost apologetically.

The room was silent, though not for long.

"We should probably talk... again..." said a familiar voice from behind them.

Dean turned and sighed, staring angrily at Chuck as he waited for his explanation.