I do not own Sherlock, and sadly no aliens, all goes to the BBC, and Mr. Moffat & Mr. Gatiss. Except Nick...I don't own YouTube either.
The Video
A young man is seen in front of a camera, his blond hair slicked back, and his thin lips set ion a straight line. When he spoke it was in a intense tone and his constant, single-minded stare into the camera, gave the impression he would have been better suited as a News Anchor. But anyone who knew him, also knew this was his true passion. The camera man gave him the five second signal. He took a as deep breath, and began.
"Welcome to The Monster Truth. I'm Nick Karelees. Tonight we ask; are we alone in the universe? How about the galaxy? A recent internet video begs the question. The place? London, England."
Screen fades and shows video. Nick looks to the moniter broadcasting the video. Intrigued as he had been when he first found it.
The camera is a bit shaky, and clearly taken by phone. As it steadies, the shot becomes clear and shows four figures, one of whom seems to be a woman from behind, via long curly hair and skirt, crouching behind two dumpsters. Ahead appears to be the back entrance of a building, the door solid and locked.
As the video's image clears the other three figures come into focus, and all have weapons, of a sort, drawn out and ready. There is grey haired man, buzz cut, whispering in a low voice.
Man1: He going to come out, any minute. Remember we need him alive, Sherlock! Okay?
Man2: Lestrade, you should know I don't want vengeance! If a stray bullet hits him in the forehead, that can hardly be my fault!
Man1: {gesturing to a blond-haired man} Okay, John!
[Nick's voiceover] : We see these men begin to bicker, and the so-called John tries to take the weapon from this "Sherlock", who immediately begins to argue, all three are alerted by the woman that the lock on the door is turning.
The door opens slightly.
Man1: Mr. Jones? We have you surrounded, if you come out easy we can talk!"
There is no sound, and the door opens a bit more, though the camera cannot pick up the image who might be behind it.
Man1: We don't want any violence, okay? Dani doesn't want you to get hurt either! Just come out, hands in the air and we can talk about this back at the Yard.
There is still no answer, but a thin glow emits from behind the door. It grows into an electric green and yellow. The man called "Sherlock" speaks in a loud voice.
Man2: Do you smell that?
Man3:What?
Man2:(After a pause.) Run...RUN!
But as he says this the electric green and yellow, suddenly overflows and the camera is suddenly blow/thrown from the holder, and the image becomes hazy, with the sound of an explosion is heard off camera. Along with yelling, one very high-pitched, and several gunshots. The picture clears in time for us to see a hand pick the phone up and run, a shot showing several other pairs of shoes running. They then stop and another shrill scream is heard, when the camera is pointed towards the roof of the building, where we see an electric green beam of light emitting erect into the sky.
"Oh my God!"
"Good Lord!"
"WHAT THE *BEEP*! WHAT THE *BEEP*'S GOING ON!?"
Another frantic scream that is soon joined by others, as the camera's quality becomes blurry, and we see a tall and unrecognizable figure lurching forward, the same electric green and yellow as seen before. The image then goes completely black.
They cut back to Nick.
"This video was posted on YouTube, some few months ago. Since then many have wondered what was that green beam going into the sky, and what was that figure we see at the end? Could we not be the only intelligent life out there?"
"Join me as I travel far across the sea, in search of answers. This is... The Monster Truth."
I couldn't get this idea out of my head...