Authors note:

Archive warnings should include sex and graphic violence, some gore, it is a Fallout 4 setting. I'll pre-warn anything particular at the start of each chapter.
AU element: Janet's alive - because that was just a no from me always! And Sam didn't just 'get over' her experiences with Fifth straight away earlier in this season.
Part of the FalloutGate series. Some parts are complete but not all so if you have comments and suggestions as to how you want it to go its not too late to feed my muse.

[Planet Designation: P4M-523]

Carter's legs were moving ahead of him, her entire body straining with the effort of keeping pace with him his newly fixed but still old knees (god bless the Asgard... or maybe it was one to many rounds in a sarcophagus) making that more of a challenge as they sprinted.

"I don't think we can make it Sir." She exclaimed, her cheeks red from exertion, her thin a grim line as her eyes widened in alertness and together they simultaneously dodged a weapons blast and he grunted, diving for her and taking her down behind a rubble wall for some cover.

"We'll make it." he grit out, checking her over briefly, it wasn't like her to be defeatist, which meant she'd clearly calculated some odds he didn't want to know about. He glanced over their makeshift cover, Daniel and Teal'c were waving and encouraging them from the event horizon, already engaged with their ticket home.

He grabbed his radio. "Daniel you and Teal'c get through the gate. We're coming right behind you." he instructed and returning fire over his head, he watched as Carter read his mind and unclipped a grenade lobbing it back towards the guards and their god damn energy beam weapons they had no business having.

"Jack..." Daniel started to cut him off.

"Now!" he bellowed through the radio. Why in hell was it that he'd ever agreed to work with civilians. No bloody sense of the chain of command, he was literally 'the Man now' and Daniel still never listened to him. He'd listened to Hammond... one star and eight years and Daniel was honest to God never going to just do as he damn well asked if it was Jack doing the asking.

"Regretting coming out for one last hoorah General Sir?" Carter almost mocked and he glanced at her, surprised given the current situation, but not entirely thrown, she always did enjoy a good firefight, adrenalin junky to the last.

He smirked at her. "Oh I don't know, I'm almost having fun Colonel." he grimaced as the explosion went off and glanced over seeing the smoke and debris he broke from cover, Carter right behind him.

They ran flat out, his chest heaving, the BDUs and weapon in his hand like old times with Carter at his side. Damn it felt good. They got to the ring and he noted the grouped bunch of locals with what looked like some sort of mounted canon. "Got to go, got to go!" he growled, grabbing Carter's arm and diving through the event horizon as the canon blast of god knows what went off.

It was a rough ride, his body hadn't frozen up like this in transit for a hell of a long time, and his stomach felt like it was on the outside of his body as the wormhole spat them out the other side. He went airborne for a few seconds, he tried to relax in some vain attempt to soften the impact as his fingers clutched tightly onto her, as he landed heavily on his back in a bone crushing thump. Carter landed mostly on top of him and he gasped, winded and hoping to God she hadn't broken his ribs… again. What was it with Carter and his damn ribs. He looked up, just in time to see the gate which appeared to have been wedged in a now completely blasted apart metal crate high up in the eaves of the warehouse, as the sudden loss of stability began to crack the surrounding structure. Great chunks of debris began to rain down on them and he covered both their heads as a chunk of metal landed inches from their feet. Hell no.

"Move move move." he hissed, dragging Carter up by her vest and knowing the whole damn thing was about to come down around their ears as dust and grime showered them and the deafening sound of metal collapsing reached a fever pitch.

Carter was right with him as they dived out the rusted doorway he'd kicked open with one good blow and he didn't stop moving even as it practically crumbled in the impact, just about managing to clock the exterior of some sort of warehouse, rusted to all hell and stinking like a latrine as he glanced back. Definitely not in Kansas anymore he thought… wasn't the gate room either. They stumbled as the the ground cracked with an almighty rumble and he glanced down seeing fissures creeping outwards like tendrils from the warehouse. Wherever they were, they'd made one hell of an entrance he noted grimly.

"Earthquake." Carter told him needlessly and he tugged her by her arm as he scrambled to get them away from the flat ground that was cracking like damn ice around them. The terrible groaning and screeching filled the air and as he watched diving for a non existent tree line, the whole damn building disappeared into a god damn sink hole.

He stood stunned for a moment, taking in short pants of air as he realised he was covered in dust and debris but mostly intact. He glanced at Carter, likewise a couple of scrapes but no injuries. But her eyes were wide and terrified.

"It's okay Carter. We'll dig the gate out and get home." he murmured confident that this was just a minor setback, they'd had worse. She turned to look at him, and he felt his stomach sink, her grimace telling him his positivity was misplaced. She shook her head but said nothing else as she trudged onwards up to higher ground, resolutely not towards the sink hole and he frowned but followed, he had enough sense to stick with the smartest person he knew.

"What...?" he pressed, not entirely certain he wanted to know what revelation she'd worked out that he'd failed to grasp.

She climbed up the incline and he followed, his legs feeling the strain as she reached the top and turned to look back after a good few minutes. She pointed. "Sir... that's a sink hole. Believe me when I tell you, that with all the equipment in the world, there may be no retrieving that gate." She admitted looking resigned, "It could be 100s of feet deep. The gate is likely buried under tonne's of rock and probably sunken in water." she added for good measure pointing at what looked like a coast line in the distance.

"Oh." he grumbled. "Well that sucks." he replied, rubbing the back of his neck and wiping the sweat that had formed there off. His brain working through permutations of just how screwed they were. He was also getting the unpleasant taste of déjà vu. Gate gets hit by blast, they get spat out somewhere other than where intended, gate is gone/non-functional.

"They hit the gate with some sort of high powered energy weapon." The Colonel confirmed his line of thinking as she turned to look at him, giving him a once over for injuries just as he had her. "Whilst we were in transit probably."

He grimaced. He remembered how this one went. "Really?" he griped. "What are the odds Carter. Me and you, spat out of the wrong gate again?" he sighed the flashback to Antarctica literally making him shiver and wince in remembered pain, "Well at least there's no ice this time." He commented, glancing around and looking at what there was.

"And there's nothing I need to put a splint on." She added glibly echoing his thoughts and giving him a wry smirk at the shared memory.

"Silver linings." He muttered as he spun around and got a good look at where they were and started to feel that knot of unease growing larger. "This place looks bleak." he settled on, noting literally no vegetation, and from where they were standing in some sort of old shipping warehouse by the look of it, no one had been here for a hell of a long time.

Carter was squinting her eyes going down to one of her fancy monitors. She whipped it out from her belt and glanced at him, that pinched expression on her face not helping that knot in his gut any. "You have that look." he told her.

"Indeed." she replied giving nothing more away and emulating his favourite guy perfectly, even the eyebrow quirked.

"I'm going to regret the no-ice quip aren't I." he groused. Waving his hand for her to give it to him straight.

"I'm picking up extremely high levels of background radiation." she replied. He balked, he hadn't been expecting that. But he supposed it had to happen to them eventually, it wasn't the first irradiated world they'd discovered through the gate. Normally they didn't send people through them though.

"How high?"

"High." she muttered. Her eyes raised and she took in the landscape, her eyes lifting to the sky, which looked a little grey. "Sir... I think this planet might have suffered a nuclear holocaust."

"Ah God damn it Carter. Please don't tell me that. Don't tell me we just watched the Stargate sink into oblivion on a dead world." he muttered, rubbing his hand across his forehead and feeling a tension headache coming on.

"A dead and radioactive world, if you want to get technical Sir." she snipped back, and pocketed her device, her expression looking as dark as he was sure his did.

"Okay. So, any ideas?"