Hi there! Thank you for deciding to read this! I hope you like it. It is my first, so very excited! I apologise if anything is inaccurate. I do not own anything, it all goes to the creators of Supernatural and Torchwood and Doctor Who, to whom I am greatly thankful to for creating!

Chapter 1

The rain was violently shaken off of his trench coat as Castiel struggled against the two larger, emotionless men restraining him. No matter how much he tried they didn't flinch, just standing and staring, letting the raindrops gracefully make their way down their faces. He stopped when the door crashed open and Captain Jack Harkness was thrown out, landing among the gravel and lying very still face down in a puddle. Cas's face dropped. He lent forward and yelled out his friend's name with intense power and emotion. He didn't fear for Jack's life as knew about his immortality, but he still hated seeing those he loves suffer. He then changed to absolute fury at the suffering in front of him and began wrestling the men again with even more force. Jack stirred, he was alive at least, as the man they have been hunting strolled purposely from the building with two sidekicks following close behind. Harkness had just managed to painfully get onto all fours, any other time Castiel would have admired his fine behind but he was too busy willing Jack to get back up and glaring with his beady eyes at the dark figure approaching his partner. Once he reached the weak kneeling Jack he kicked him in the stomach, sending him back down and rolling through the mud. Now Castiel could see the gorgeous bloody face of the spluttering man he loved.

After he had cleared the blood from is throat he began to laugh weakly and faintly said, "is that all you've got?" mocking him as he grinned and tried to roll back over.

Before he made it up again the two sidekicks had grabbed Jack's arms and hauled him up; he winced at the abrupt movement to his damaged body and the tightness of the grip, they weren't letting him go anytime soon. The immortal looked over blindly to his angel, squinting as a mix of blood and rain ran into his eyes.

He cleared his throat once more and spat before he spoke, "how you doing handsome?" as he winked at Cas, but all he got in return was a sassy glare.

Jack never understood why he always took everything so seriously. Being immortal you can never lose, really, you always know something is going to be alright in the end. Castiel never understood how his equally trenchcoated friend was always so relaxed; he had learnt that there are always consequences and losses. That is the plague of human life. This is why he fell in love with Jack: "the man who can never die", as he put it, because he will always be there for him throughout eternity, both fighting through the trauma of the constant loss of mortal beings.

Moonlight reflecting off of metal flashed across his eyes, bringing him back to reality and the situation unfolding before him. He noticed the transformation of the expression on Jack's face; it was an unusual one, one he had never or maybe very rarely ever seen: ultimate fear. He had gone pale, Cas hoped it was just the excess loss of blood to shake off his thought of utter terror. The cheeky grin and vitality had vanished as he noted the shuffling of his feet: he was trying to escape, to back away and avoid whatever our villain was doing. The angel looked across to see the suited man smiling smugly at Cas, playing with the weapon in his hand.

"Cas?!" Jack called helpless and concerned.

Castiel went cold, 'it can't be', he thought, 'it's been lost for centuries. How can it still exist?' He began to wriggle too as the man approached him slowly, every crunch of gravel more tedious than the last.

"Hey!" Jack yelled, rage bright in his eyes, all pain was gone now as he forgot about himself and only thought about his angel, "don't you dare touch him!" His jaw clenched; a new surge of energy had been released as he fought harder against the restraints, but it was still no use.

Harkness' heart tore as he saw his angel letting go. The puppy eyes were out and welling up; he felt helpless as he saw fear strike his baby while this bastard slowly stroked Cas's face with the pistol. In a few days he was planning on popping the question, intending to spend eternity together. Never in his wildest dreams did he expect "until death do us part" to actually apply to them.

The monster leaned towards Cas, cheeks almost touching, Jack's internal fury screamed, 'if he kisses him, I swear to God...'

The posh almost seductive British accent began, "I understand that you and your boyfriend over there know what this is..."

Up close Cas was now able to fully see the significant markings engraved into the pistol that was millimetres away from his face. He swallowed and straighten himself up, with full confidence he said "yes" without breaking eye contact.

"Good good," he replied snarling, "well then, you know that The Colt has the ability to kill absolutely any-"

"Hey!" He span round, looking pissed at being rudely interrupted in his dramatic speech. "Yeah you, Assbutt! You hear me! Don't you dare touch him!"

"Oh, don't you worry," he said grinning while checking the bullets in the loaded gun, "I won't touch him."

The next moments felt like they played in slow motion. The gun was raised. A shot was fired. Thunder rumbled in the distance and the scene was lit up for a second as lightening cracked from behind. Castiel let out a heart-wrenching cry, his face shook and eyes filled with tears of fury and pain, but all he could hear was Jack plummeting to the ground. The villain cackled then disappeared instantly with his sidekicks. The angel ran over to his lover's body and skidded to a halt, kneeling beside him in the puddle of blood and rain. Cas tentatively rolled the Captain over to cradle him in his arms, his head rolling lifelessly with the movement revealing his gorgeous face which was void of all expression. He held onto his hand and put it to the hole in his chest, blood pouring out over both of them.

But he was too late.

The puddles surrounding them darkened as blood ran from Harkness' mouth and joined the rain down his cheek. Cas pulled the body close to his own as if to share his heartbeat, rocking back and forth and whispering Jack's name every so often, hoping that somehow Jack would wake up again like he always did. Tears were lost amongst the rain as they rolled down his cheeks, realising the futility of his hope. He rubbed his face with his bloodied sleeve to clear his eyes, oblivious to the smear of red it left, and let out of breath of air, looking down at the face he loves, lip trembling. He ran his thumb along Jack's lips and cheek and pressed his mouth against them, holding it there for what felt like forever, eyes shut tight to hold back pain. After composing himself he stood up, carrying the limp body in his arms like a newly wedded bride, his coat tail draping down, fluttering in the wind. The moist hand he had just let go of rested on his chest then slid off with the motion of rising; it hung loosely down with the other, swinging lifelessly with every step. Cas stared forwards, letting the tears run uncontrollably, avoiding looking down at Jack whose head had fallen back for the last time. He walked off into the darkness, using only the random flashes of lightning to show him the way back.

A/N: I hope you liked it! Please keep reading if you enjoyed it! I've planned 8 chapters and they're not that long, so hopefully I should upload it all pretty quickly. Feel free to tell me what you think. x

I had comments about the bad guy. I don't know who it is, which I guess is bad, but it wasn't my focus for the story, I just needed to set up the scenario I wanted to write about. I just want to write about Jack's immortality and his relationship with Castiel. Apologies! XD