Goa'uld and Shifters

Dean parked the Impala and switched of the engines. He scanned the street and was suddenly elbowing Sam. Sam, who had been watching the house through a gap in the hedges, threw him a questioning look.
"That look like a red jaguar to you?"
Sam nodded at the convertible just down the road.
"This house is owned by Anna and Pierce Kennedy, who own Bains Pharmaceuticals, a subsidiary business to Nouveau Pharmaceutical. The man on the docks said he saw a woman with yellow eyes get into a jaguar and that one matches the plates from the security cameras."
"And yellow eyes mean Demons. Looks like we have our place."
Dean finished, glancing at the house. Through the hedge, he could make out an ornate garden and an office with large windows.
"What did Bobby have to say?"
Sam asked, scrolling through something on his phone. Dean shrugged.
"Not much. He said it didn't sound like a Demon, but wasn't sure what it was. Not knowing about Hell, was plain weird. Add onto that the talk about planets and ships, confused even Bobby. He did pick up on one thing though. The creature called itself a Therian. Bobby says it's an ancient Greek word, meaning Shifter."
Sam frowned in thought.
"As in Shapeshifter?"
"He thinks so, but her description doesn't match a typical Shifter."
Dean scanned the street again. The meeting with the yellow eyed girl had been bugging him. Something had felt of about her and nothing had phased her. Not even having a gun pointed at her. Then they had heard on the police scanner about an entire cargo ship's crew going missing and a mad homeless drunk talking about strange scifi phasers that disintegrated bodies. They had explored less though and when drivers reported blue flashes in the sky above the docks, they were determined to find out what was going on. They had found out the owner of The Helix was Hector Rodriguez, a Mexican businessman suspected of illegal smuggling. A bit more digging had revealed dinner with Anna Kennedy two days before his disappearance. With mention of a yellow eyed woman with an expensive red jaguar and Anna Kennedy owning a subsidiary of the company releasing the Croatoan Virus, it didn't take rocket science to put two and two together. Dean just hoped they weren't coming out with five. He glanced at the house and swore.
"Son of a bitch."
Sam looked at him, then followed his gaze to the house. A pretty young woman with striped black and grey hair ending in white, was leaning over the desk.
"What?"
"That's the girl from the bar."
Sam turned to look at the girl once more. He pulled up a picture on his phone.
"Well she definitely isn't Anna Kennedy."
He showed Dean the picture of Anna Kennedy and her husband at a charity function. Dean scowled, pulling his gun out the glove compartment and checking it's clip.
"Then who the hell is she?"
Sam shrugged, checking the house once more. He elbowed his brother and pointed. In the office, the girl had paused, looking at the door with her head cocked to one side, still as a statue. Suddenly, she started rearranging the desk again, glancing at the door periodically. The next thing they knew, a tabby cat was crouched on the desk, tail twitching as it leapt down and through the door, startling a man in a black suit as it opened.
"Well, looks like Bobby was right. She's a shifter."
Dean grunted.
"Let's see if she's more willing to talk this time."
The boys got out the Impala, hiding their guns under their suit jackets and crossed the road, darting down an alley along the side of the house. Just as they hit the other end of the alley, they were met by two guns.
"Hands in the air."
The short haired man said. He spoke with obvious authority and his large companion grinned menacingly. The second man was easily Sam's height, with large muscles and a head of dreadlocks. His gun was a strange design, with a red light at the end. The Winchester's exchanged a look and raised their hands. They didn't much fancy their chances when a black van pulled up behind the men and a young caramel skinned woman pointed a gun from behind them.
'That looks like military grade weapons.'
Dean thought to himself as the dark haired male cuffed them.
"You're coming with us."
He relieved the boys of their own guns.
"Nice piece."
He said when he saw Dean's ivory hilted, engraved gun. Dean grunted and they were shoved into the van and blindfolded.
"Oh come on, what is this?"
No one answered as the van took of.

After talking to Frank on the Oakland Docks, Sheppard had called Woolsey with an update. The Atlantis Commander had gone on to call the FBI and find the red jaguar, but Rodney had gotten bored and done it himself. His readings on the pier had confirmed high energy devices had been used. In fact, they had matched readings taken from Zat'nik'tels. The girl with yellow glowing eyes had confirmed their suspicions, but some things were not adding up. So Rodney had hacked into the security footage from the Oakland Docks and found three black sedans escorting a container to the south. Seconds later, a red jaguar had followed them, also heading south. It had been too dark to see the driver, but they managed to use the street cameras to follow it. The jaguar had parked outside a house listed to Anna and Pierce Kennedy, who owned the company where the container was delivered. What didn't add up, was that there was no such container listed anywhere at the docks or even listed as arriving at the company. Add to that, the jaguar listed as stolen and something strange was clearly going on. They had just arrived at the house, driving a nondescript black van. Sheppard turned the ignition off and pulled out his ringing phone, seeing it was Woolsey.
"Sir."
"Colonel Sheppard. I hear you tracked down the car."
"Yes sir. We just arrived at the Kennedy house and have it in sight. I was planning on bringing in the driver once they set of."
Sheppard heard Woolsey shuffle paperwork on his desk.
"Good idea Colonel. I got in touch with the FBI. You might like to know that they have no idea who your informant spoke to. They have no Agents in the San Francisco area and none listed as dealing with this case."
Sheppard scanned the street as Woolsey spoke and paused.
"Really? That's interesting. Our informant also mentioned something else just before we left."
"What was it?"
Sheppard smiled.
"He said they were driving an old classic car. Some kind of Chevy and I'm currently looking at a 1967 Chevrolet Impala just a few cars down from the stolen red Jaguar."
"Can you see the driver?"
Beside Sheppard, Teyla was leaning forward, peering at the vehicle.
"I can see two men in the front Colonel."
Woolsey could hear her and responded before Sheppard could say anything.
"Bring them in if they seem suspicious Colonel."
"Yes sir."
It was mere moments after hanging up, that the occupants of the Impala got out, slipping something under their jackets. Sheppard suspected it was guns.
"Teyla, follow them. Rodney, we're going to pin them at the other end of the alley and take them in. See who they are. I want you to drive the van while Ronon and I confront them."
Teyla was out of the van before he finished speaking, already able to predict the plan. Sheppard quickly started the van and spun it round on the quiet road, heading for a road to the next street just two houses down. Ronon was out before the van stopped and Rodney took Sheppard's place at the wheel as he got out, pulling the clip back on his gun. They rounded the end of the alley and ran straight into the two men, who were remarkably tall.
"Hands in the air."
The two men stopped in surprise and slowly raised their hands, exchanging an exasperated look, as though this was a common thing to happen. Sheppard heard the van pull up behind him, hiding them from prying eyes. The shorter of the two men sensed the moment Teyla took up her position behind them, eying her with a slight tilt of his head.
"You're coming with us."
John lowered his weapon, pulling cuffs from his jacket. He had grabbed them on his way out the van, preferring the prisoners to be restrained until they could determine if they were a threat. Once they were cuffed, Sheppard removed the guns he had seen them hide and nodded to Ronon, then the van.
"Nice piece."
He said to the shorter man as they were shoved into the van. The man grunted in response but said nothing until they were blindfolded. Then he complained. Sheppard ignored him as he got back behind the wheel, Rodney having moved to the passenger seat. He placed the two guns on the dashboard and drove the van back the way they came, passing the front of the Kennedy House. A squad car had arrived, parking alongside the red Jaguar so it couldn't be taken again and Sheppard gave them a nod as he drove past. Something moved out the corner of his eye and he smiled as he saw a small tabby watching them drive by from the top of the Kennedys garden wall.

Chimera heard movement from the hallway and froze, cocking her head to one side as she listened. She could just make out someone ordering for a document from their office. She glanced down at the paperwork she was rifling through and cursed. It was time to leave. She reorganised the desk back to how it was and swiftly changed into her tabby form. The window wasn't an option as she could see it was locked, so she was going to have to dart through the door. Chimera crouched low on the edge of the desk and as soon as the door opened, she launched. The man in the doorway let out a yelp of surprise, but she was already gone, down the hall and back into the kitchen. It was still empty and she smoothly changed back just long enough to open the door and slip through. Breathing a sigh of relief that she successfully got out of the house, she quietly slipped through the undergrowth in the garden, heading for the wall. Chimera avoided a man and dog that wandered past at one point, finding herself further round on the road then when she entered the property. Chimera leapt up onto the wall and glanced around. A black van was approaching and she watched it, twitching her tail as she recognised the driver.
'Sheppard? No, it can't be. What's he doing on Earth? Maybe he is on leave. Brilliant, I can look him up when I'm done with this hunt. Be good to catch up.'
Chimera felt her good mood disappear though when she saw the police around the Jaguar.
'Damn. There goes my ride. I liked that car.'
She huffed, slipping into human form as she leapt onto the road. Chimera slipped on a pair of sunglasses and sauntered down the road, watching the cops from the corner of her eye. She walked straight past them and they didn't even give her a second glance. Her steps slowed though as she came up to a sleek black car on her side of the road. It was gorgeous. Sleek, black, shiny. It looked old compared to the cars around it, so Chimera guessed it was one of those 'Classic' cars Lorne had mentioned whenever they talked. She grinned, approaching the driver's side of the car and slipping out the small unlocking device she carried in her jacket. To her surprise though, the door open without the device, already unlocked. She slid smoothly into the leather interior and grinned at the keys in the ignition. Someone was certainly looking out for her. Then Chimera frowned, taking a deep breath. The scent in the car was familiar, but where from? There was a second scent she didn't recognise at all, but the driver seat smelt of someone she had met. She pressed her nose to the side of the seat, closing her eyes as she breathed in. Oh yes, she knew the scent and she liked it, rubbing her face against the leather. Opening her eyes, she saw a leather jacket laid out over the backseat and knew who the car belonged to instantly. The man from the bar had worn that jacket and she now recognised the smell of his cologne, the oil of his gun and his underlying natural scent, tinged with the tang of whiskey. She leaned back in the seat and drummed her fingers on the wheel.
"How did he track me down?"
She muttered to herself.
'Who is he? What is he?'
She glanced through the window as she thought and noticed the two cops at the Jaguar, were being joined by a second squad car.
'I'll figure this out somewhere a little more private.'
Chimera twisted the key and grinned at the deep growl that came from the engine. She pulled the car out, turning it away from the cops and sped away to find somewhere quiet.