*Watching The Walking Dead so I'm on a zombie spree couldn't help but think of John and Sherlock during the apocalypse!*

He didn't know where or when it started but the moment Dr. John Watson returned from Afghanistan the world had gone to shit almost overnight! Stepping off the plane on to the tarmac he was instantly bombarded "Are you a doctor?" a man in a black suit that closely resembled the men in black questioned. John was so taken back by the severity of the way the question was asked that he was confused "What?" he asked the man.

Suddenly the suited man grabbed John by the shoulders shaking him quite violently "Are you a fucking doctor?" he hissed. If John hadn't been so stunned solider mode would have kicked in and the suited man would have been on the asphalt "Yes, yes damnit I am," John snapped relieved when the other man released him. Without another word John was pulled away towards a waiting black SUV. He was thrown through the door into the back and locked inside "Hey!" John shouted as the suited man yelled at the driver to go.

The SUV lurched forward, tires squealing on the asphalt slamming John into the seat. It took only moments for him to collect himself "Where are you taking me?" John growled extremely beyond irritated. The driver kept his eyes on the road "I don't know much," the man started pushing up and over the speed limit as the car went off the tarmac on to the public streets, "I was only told to collect any doctors unloading and take them to ST. Bart's as quickly as possible." John fixed the man with a hard look his brown eyes searching him for answers.

"What's happened?" the doctor side of John came out. The driver shook his head turning the wheel sharply sending John sliding across the seat. Protesting horns followed them as the driver straightened the SUV "Like I said I don't know much. Last few days have been insane. One moment everything is fine the next the worlds gone to Hell." The man answered John bit his lip. The twenty-eight hour fight had left him exhausted and it sounded like something catastrophic had happened so it seemed he would go sleep deprived for a while.

"What do you mean?" Dr. John asked hoping for a little more information. The driver clenched the wheel making his knuckles turn white "People been getting sick, not normal sick. It starts with a cough and by nightfall you're on the floor drowning in your own sick. If you live through that by the next morning you're burning with a fever so hot it blisters your skin and by the next night you're dead. Then there's the rumors," the man replied his voice drifting away. John watched the driver's face whiten "Rumors?" John pressed as the driver slammed on the breaks in front of St. Bart's.

The door was pulled open not giving the driver any chance to answer as hands dragged John from the back. "You are a doctor yes?" a short woman asked fiercely. John glanced back as the SUV sped away. "Yes why am I here?" he snapped in response. The woman waved for him to follow. "I'm Mary and we are swamped with incoming patients. We call in for every doctor we can find." She explained John followed reluctantly "So you've resorted to kidnapping?" he questioned Mary threw him a look "You don't understand," she simply replied as they went inside.

John froze inside the doors Mary was right he didn't understand. The lobby was crowded, packed with people. They were everywhere all in various degrees of illness. Blood was splashed in the crème titles with hundreds of bloody footprints tracking it in different directions. The room smelled of blood, sickness, and death. It was filled with pressing fear. Every person in the room was talking their voice blending together all tight with terror.

"Doctor," Mary urged John took a moment to pull himself together before fighting through the crowds "Please!" the people pleaded grabbing at his clothes "Please!" they called together but John only apologized and kept moving following Mary closely. Once through the throng it didn't get much better. People still lined the halls "We don't have the staff to take on this many and that is why we have taken extreme measures," Mary spoke still leading him down the halls.

"What is it?" John asked getting a glance from Mary "I wish I could tell you," she answered as a woman screamed from a nearby room. They paused in stunned surprised as the screaming woman rushed from her room straight into John "God! Help me!" the woman yelled clutching John. To his horror her eyes were gushing blood "God! Please!" her voice cried as men pulled her from John. "What the fuck?" John barely managed noticing the woman's blood had splattered on his jacket. "It's nothing we have ever seen," Mary said softly John noted she wasn't surprised by the state of the woman.

"What can you tell me?" John asked as they started down the hall again "Don't let them bite you," Mary replied he gave her a confused look that was missed. "Mary!" Mary!" someone was shouting urgently. A man pushed his way around people his scrubs covered in blood "We need you now!" the man snapped when he spotted her. Mary leapt into action sprinting after the running man. John followed.

Racing down the halls they were able to spot the man hurrying into a room to the right. Inside the room a multitude if people moved around a bed the beeping heart monitor had flat lined. The blood covered man was yelling out orders but everyone was moving, doing those things without his word. A nurse was pressing the paddles on the exposed chest of the patient "Clear!" she shouted moments before the body convulsed under her. John stood back knowing he would be more in the way than helpful. The nurse with defibrillator called 'clear' a dozen more times before the room grew quiet. The machines were the only noise in the room as everyone sagged, defeated.

Mary stepped towards the blood covered man laying her hand on his shoulder "Jeremy," she whispered. John couldn't see her face but her tone was questioning. Glancing around everyone was looking to the man, waiting.

Waiting for what?

The questioned answered itself when Jeremy sighed stepping from Mary's hand closing the distance between him and the bed. Everyone moved back giving John a clear view of what was about to happen. As Jeremy closed in on the bed he reached into his pocket and extracted a gun! John gasped staring as the doctor aimed at the dead man on the bed "What the…" John was saying as the man pulled the trigger shooting the body in the head cutting off any words from John's mouth.

John stood with his mouth hanging open from the unfinished profanity after the shoot faded completely flabbergasted by what he had just watched "Are you fucking insane?!" he shouted drawing every eye to him, "Why the fuck did you do that?!" they seemed all stunned by his outburst. Jeremy looked at Mary "New doctor?" he asked her getting a nod as a response. Mary stepped towards John who instinctively backed up. "Come out to the hall and let me explain," she urged stopping gesturing for the hall. John eyed her and to Jeremy's pocket where the gun was hiding.

Reluctantly he went "Now what just happened?" John growled once they were in the hall and everyone had moved on. Mary sighed looking extremely tired "This illness is nothing like we have ever seen," she stated John snorted "You've mentioned that now get to the part to shooting dead patients in the head!" he hissed Mary gave him a long look "You won't believe me. No one ever does at first." She told him. John fixed Mary with a glare until she continued "Every patient we've had come in with this sickness die within hours. But they don't exactly stay dead…" Mary said her voice fading as she looked to him.

"What?" John asked not believing those words had just come from her mouth Mary shuffled "The dead are coming back to life," she repeated weakly. He stood staring at her before glancing around slowly "Are you fucking kidding me?" John snapped suddenly startling Mary. "Do you really expect me to believe that bullshit?" he asked throwing his hands above his head. "Mary did you listen to yourself? That's insane! And completely ridiculous!" John hissed Mary pursed her lips "I told you, you wouldn't believe me. No one ever does," she said as a new scream of terror erupted behind them.

John turned to see what the fuss was about. A woman stood in the hall feet from him she was wearing a bright pink bathrobe loosely tied around her waist. Around her neck dried blood stained the pale skin, an odd growling sound was emanating from her as she stood hunched looking around. Her eyes turned to John and he gasped. The pupils were glazed almost white, like those of a corpse. The woman lurched towards him giving a throaty roar. John reacted quickly drawing his gun from its place tucked into the back of his pants without a second thought he pulled the trigger. The bullet hit her heart directly but the woman didn't seem to feel it and kept coming. John panicked for a second astonished before aiming his gun higher releasing another shot.

The woman fell heavily to the floor a new hole in her head. Thick congealed blood crept over the tiles. John slowly lowered the gun his heart pounding away at his rib cage "What the…" John croaked. The woman had been shot in the heart! That should have been enough to put her down but it wasn't "Only head shot keep them down," Mary whispered behind him. John turned towards her starting to feel nauseous. Mary had a weak smile her eyes on the pink lady's still form "Believe me now?" she asked a single tear rolling down her face.

* Reviews please let me know if I should continue. Thanks :D