This follows episode Asylum, when Sam and Dean pull over to stop.
"Tell me again why we are here," Dean asked. Sam opened his mouth to answer. He was interrupted as shots rang through the air, splitting the silence. Sam looked to Dean who grabbed a gun and ran out towards the shots, followed by Sam. Screams erupted from inside the bushland. Dean raced into the trees without thinking. Sam shook his head and followed. Dean burst through the bush into a small opening. Sam burst through the bush only seconds later. They stood at the edge of the clearing, still hidden in shadows. An unearthly growl echoed through the clearing. Dean spun around, swearing.
"Werewolf…" Sam looked to him in shock.
"Werewolves are real?" Dean looked to Sam.
"And that shocks you?" Sam shrugged and started looking around.
"Get back here, mutt!" Sam and Dean looked at each other in confusion. That was a girl's voice. "Oi! I'm talking to you, dog breath!" She yelled again. Suddenly a deformed beast tore into the clearing, bleeding from its arm and leg. Two figures came running out after it. Hidden in the shadows, one lined up the werewolf.
"Here doggy, doggy…" The same one cooed, trying to draw it towards them. "Come on, I got two nice legs for you to hump!" She joked. The werewolf reared up, angered. It stood up tall, growling. A loud crack sounded and a chill ran through the werewolf. It fell back, landing stiff.
"Timber!" The other one said, stepping into the light. She looked remotely familiar to the guys. Her brunette hair was hidden in a white hooded jacket except the fringe falling in front of her hazel eyes. She squatted down next to the dead beast and nudged it. She fell back when the beast transformed back into a dead human, falling in the mud, getting her back soaked in it.
"That was fun!" The other one remarked sarcastically. She lowered her gun with smoke still curling out of the barrel. She looked to the guys and froze.
"Umm, nothing to see here folks. Just a wild bear attack…" She stood into the light, illuminating herself. Cass drew out her badge and flashed the shadows. Sam stepped into the light eyebrows raised. Cass grinned and ran over.
"Sammy! I didn't think I'd see again so soon!" She flung her arms around him and hugged him. This time he didn't hug back.
"What was that?" Dean demanded, pointing to Phoebe sitting in the mud next to the dead werewolf.
"Umm, a hunting." Cass said simply. Sam looked quizzically at her.
"Since when are you a hunter?" Cass looked at Phoebe and her head sunk.
"After you left, you know after Jess…" Sam stiffened at the mention of Jess. "Something happened." Phoebe's head bowed too. "Do you remember Evan?"
"Yeah, your fiancée?" Tears swelled in Cass' eyes.
"He's dead." She muttered turning away. Sam couldn't find the words. He hardly knew Evan but he knew how much he meant to Cass.
"What happened?" Dean asked.
"I don't know. I came home and found him…" She broke off, unable to speak. Phoebe stood up and patted her shoulder.
"He was pinned up on the roof, bleeding from his stomach. I heard her screaming and came in. That's when it got weird…" Phoebe said looking away from the boys. Cass raised her head, wiping the tears from her face.
"The room erupted in flames. I barely made it out." Cass looked Sam in the eyes. "His body wasn't found, it burnt to dust. The same thing happened to Jess, didn't it? And your mother?" Dean nodded. "I looked through all the records and found that after that you pretty much disappeared, until you came to school."
"That doesn't explain how you found out about hunting." Dean said.
"Oh, your dad told us where to look." Phoebe said shrugging.
"You've spoken to our dad?"
"Yeah, he's the one who told us about the demon, the one that killed Evan and Jess."
"When was the last time you spoke to him?" Cass thought for a minute.
"I think a couple months ago, it's been a while."
"Why?"
"He said he had a job to do so we left him alone. Now all we get is his voicemail." Cass said before turning to the dead man. She pulled out her phone and dialled.
"Hey, it's me," Cass said as someone answered. "Yeah, we found him," She waited as the person talked. "Dead, we couldn't bring him in alive," Sam looked at Dean who had an equal look of confusion. "Okay, bye!" Cass said hanging up.
"Everything good?" Phoebe asked putting her gun away.
"Yeah, they can deal with him," she motioned to the werewolf. "Let's get out of here."
"You're just going to leave it?" Dean asked as Cass and Phoebe started to leave.
"Yep, we got people who can deal with the body. It's better if we don't get involved, we don't want to get in trouble again."
"Alright…" Sam muttered before following the girls away from the body, with Dean reluctantly trailing behind him.
"We've got some work to do up north, but after that want to meet up and track that fucker together?" Cass asks, leaping into the driver's seat of a red convertible.
"Sure, where do we meet?" Dean asks, examining the car in awe.
"I'll call you," Cass sits up and kisses Sam on the cheek before dropping back into the seat and slamming the engine on. Phoebe quickly jumps in the other side before Cass speed away, covering the guys in dust.
"This just got interesting…" Dean murmured before packing up and moving on, to another town and another case.