Ok, this is mainly a long, detailed-ish rewrite of the ending, which some people asked for. Maybe later I'll do a bit of an epilogue, showing what the Doctor does about the Master and starts his next crazy adventure with the three Ponds, but I'm not sure. I think I'll let you guys decide that! This is the longest chapter I've written, and I was thinking of spreading it out over 2 ending chapters, but I felt like you guys should have this all in one :)
Enjoy, and I don't own. The evil mastermind, Moffat, does :P

Jack nodded once when River and the Master had finished explaining the plan. It was flawless, except it would require a not-so-flawless piece of technology.

"You really think this," he held up a glistening piece of metal on a chain, "will keep whoever it is upstairs from noticing me? This barely kept him," he jerked his thumb at the Master, "from seeing us!"

The Master sighed; the human race really could be quite thick. "Throw it over here."

Jack glared at him but did what he asked. The Master caught the key gracefully in his left hand and pulled his laser screwdriver out of his pocket with the other.

"Who'd have sonic…" Jack muttered, and the Master flashed him a quick grin before pointing and pushing a fancy button. The tip of the screwdriver began glowing, and the key started smoking. Jack leaned against the wall.

"You have no idea what's running through my head right now…"

"Jack!" River admonished him.

He held up his hands in surrender. "Just putting my thoughts out there. No need to kill me."

The Master threw the key back to Jack. "Try it on," he ordered.

Jack—for once without complaint—did as he was told and slipped the chain over his head. Amy, who had been staring between him and the Master for the entirety of the conversation, looked from Jack—or where he had been—to the Master.

"What'd you do to that key-thing? He's vanished!"

"I… upgraded it a bit," the Master giggled.

Jack smiled widely and took the key from around his neck. "This is amazing!"

Amy's eyes widened, and she hit Rory's arm a couple of times. "Did you—"

Rory nodded, dumbfounded. "Yeah… Yeah, I did."

Jack looked at him. "I'll be able to get to Rassilon before he even realizes what hit him."

Rory raised his eyebrows. "What are you going to do? Flirt with him to death?"

Jack reached into the pack he had thrown on the floor and pulled out a large gun and a briefcase. He knelt on the floor, opened the briefcase, and pulled out four vials with different colored liquids in each one. He slotted each vial into a different hole in the top of the gun with a click. With a closer look, Amy and Rory were able to tell that the end of a gun was a needle.

"What does it do," Amy asked.

"The only way to kill a Timelord stone dead. Stab him with this, pull the trigger, and he can't even regenerate. Shoot him? Well that works, but it has to be a special gun, and you have to shoot him while he's regenerating. Usually not an option. Torchwood developed this technology, but it was destroyed in the Year that Never Was, so we created a new one, refined the technology," Jack explained. "I just have to get close enough to him."

River smiled sardonically. "I've always been pretty good at distractions. Leave it to me."

Jack winked and gestured for her to start her distraction. She pulled lipstick out of her pocket and started putting it on. Jack's eyebrows shot up into his hair; he didn't understand why a woman like River would need lipstick to be distracting. The Master just looked bored. Amy giggled while Rory shook his head.

"And which one is that?"

"Oh, daddy, just the hallucinogenic." River wriggled her eyebrows at Jack's bemused look.

"Hallucinogenic? Use that on all your boyfriends?"

"Oh, Jack dear, do you really want to flirt with me right now? Knowing who I am." River's gaze turned steely and Jack glanced at the floor sheepishly."

"All right, all right. I'm not used to this…" He muttered.

After watching the proceedings, Rory nodded and leaned against the back wall. Jack threw the TARDIS key back around his neck as River walked to the door. "Hello," she called. "Is anyone there? I would love to go to the loo."

A guard appeared out of the blue and let her out of the cell, carefully watching the other two occupants that he could see. Before he could close the door, River kissed him. When she pulled away, he had a dreamy look on his face.

"Now there's a good boy. Go on, scoot!" She shooed him away, waited until she felt Jack's hand on her shoulder and went back to the cell. It was up to Jack, now.

Jack silently made his way down the hall and up the stairs. The room Rassilon and the Doctor were in was right off the staircase. He didn't see the Doctor when he walked in, all he saw was Rassilon. He was facing Jack, and his expression was one of someone trying to decide how to get rid of a horrible problem.

Jack walked, glad for his time as a spy, catlike to the Timelord. He hoisted the gun onto his shoulder and aimed the needlepoint at Rassilon's neck. He lunged, but Rassilon turned before he was able to pull the trigger. The Timelord swatted at Jack, and strode to the table where a silver gauntlet lay. Jack fell to the ground, cradling the gun—it was made mostly of glass. Rassilon spun around to face Jack, gauntlet on his right hand. Jack's eyes widened, and he set the gun on the ground; he knew he'd require both hands to fight this alien.

Rassilon continued striding towards Jack, looking for all the world like an angel—or demon, Jack thought grimly—of death. Well, here goes nothing. He took a deep breath and ran at Rassilon. The Timelord smirked and flung him aside like an insect. How the hell—? He didn't even touch me! Some backup would be lovely right about now… Of course, real life didn't work the way it did in those stupid shows on tv where the help comes just as the dashing hero is about to die a dramatic—and handsome—death. Jack pushed himself up. If he was going to die by this Timelord's hands, he was going to do it standing up.

"Hm, no witty lines from the famous Face of Boe," question Rassilon, smirking.

"Concentrating on how best to… You know, never mind. I'm sure you wouldn't want to know." Jack smirked right back at him. Two could play at that game.

Rassilon shook his head as he advanced on Jack. "I've grown tired of this game. Your atoms will be scattered throughout space and time in a matter of seconds. I hope you have your will in order."

Jack started inching backwards, looking at the gun in his peripheral vision. If he could just—get some air. Jack started choking. He looked over at Rassilon, whose gloved fist was clenched. The alien was sweating a bit with the difficulty of strangling Jack. Jack chuckled, knowing exactly how difficult he was to kill.

"Feeling a bit weak, oh high and mighty Timelord?"

Rassilon snarled and snapped his arm to the side, releasing Jack's throat. Jack took in a deep gasping breath and slid towards the gun. Jack's arms wrapped around the gun, his finger on the trigger, when Rassilon flung him to the other end of the room. And Jack felt his neck snap.

When he came out of the blackness, Rassilon was standing over him, staring at him like some sort of exhibit. "Like what you see?" Jack wriggled his eyebrows, and Rassilon scoffed. Feeling returned to Jack's fingers, and he felt the trigger of the gun right where it had to be.

"Let's not be trivial, Jack."

"Fine, then. I'll cut to the chase." Jack lunged, swinging the gun forward, and managing to lodge it somewhere near Rassilon's collarbone. He pulled the trigger, and Rassilon's eyes grew wide. The Timelord fell backwards and landed on the ground with a thud. Jack wiped some sweat off of his forehead, staring warily at the unmoving form on the ground. He turned and saw the Rani staring at Rassilon in horror. She shrieked.

"How dare you? You won't live another day, you human," She ran at Jack, who knocked her down.

"Why are you defending him, anyway? He exiled you, didn't he?"

"Yes, and he brought me back, reinstated my labs, and my abilities to experiment on other planets." At this, she launched herself at him again.

Jack made a face and ducked, but she caught his head, dragging him down with her as she fell.

River, Amy, and Rory ran up the stairs. The Rani looked up.

"You," she snarled, launching herself at River.

River pulled out a gun out of the holster she was wearing and shot. The Rani fell to the ground and began to glow a soft golden color. River shot her again, her face a blank mask. Jack ripped the necklace from around his neck and ran to them, carefully skirting the Rani's body.

River looked up at him. "Where's the Doctor?"

Jack sprinted off with a single shout of Doctor. A groan from the opposite direction had him skidding to a stop, spinning, and taking off where the noise came from. Jack nearly ran into a wall, catching himself with his hands.

"I could've sworn… I thought I heard his voice." He turned around, back to the wall he had just collided with. The wall moved to the side, revealing the Doctor chained to the wall. River screamed, and Amy choked on a sob, leaning into Rory. Jack frowned.

"Wha—oh…" He turned around and saw the Doctor.

The Timelord raised his head and smiled. "Always good to see you, Jack."

Jack looked at the newly regenerated Timelord. His face was drenched in sweat and blood ran down his face, but Jack couldn't see a cut anywhere. The Doctor's hair was plastered to his face, and the effort of holding his head up by himself was almost too much for him to bear. He was almost glad of the chains on his wrists and ankles; if they weren't there, he wasn't sure he would be able to stand on his own.

"Doctor, how…? Why…?" Jack sighed and started over with a different line of questioning. "How do I get you down?"

"Sonic screwdriver, left inside pocket."

Jack stuck his hand in the Doctor's pocket and pulled out the screwdriver. He pointed it one by one at the chains holding the Doctor aloft and pressed the button. The screwdriver hummed four times before the Doctor fell to his feet, and then to the ground. Rory and River ran forward to help the Doctor up.

The Doctor smiled wearily at them. "How's this for an adventure, then, Ponds?"

"Don't you ever, ever do something like this again. Or I will kill you," River promised, tears in her eyes.

"Hey…" The Doctor whispered, forcing his hand up to wipe the forming tears away and leaving it to rest on River's face.

River leaned into the touch a little before clearing her throat. "Do you think you can walk on your own?"

The Doctor nodded, and slowly, River and Rory let go of him. He took a few steps forward before stumbling right into Jack.

"Now, here's the greeting I was expecting," Jack laughed. The Doctor shook his head at Jack's antics, getting his soaked hair into his eyes.

Jack wiped his friend's hair back from his face and stifled a laugh. "Doctor, I think you need a haircut…" He set the Timelord back on his feet. "And an emergency wardrobe intervention. A bowtie? Really?"

The Doctor threw back his head and laughed. "Bowties," he informed Jack, "are cool. Hence, I wear them now."

The Master wandered up the stairs sheepishly and waved. The Doctor beamed as Jack scowled. The Doctor scooped the other Timelord up into a huge bear hug and grinned. "I've missed you... Koschei," he whispered.

The Master smiled. "You've forgiven me, then?"

"There's nothing to forgive. You were always my best friend."

Hope you liked! And as always, click that little button down there and tell me what you thought! I love you all, and it's been a fun ride. Unless you want me to write an epilogue. then it's still a fun ride :)