The Doctor stopped, looked at the console and then at the screen and then at the Police Box doors. He didn't know when he was, to be honest that part of the TARDIS travel was never very accurate, being honest he didn't care. She had piloted him to this stop, it was her childhood, where she'd grown up. The Doctor couldn't wait any longer, he marched forwards and walked out of the blue box.
As he did so, he noticed, on his right, an elderly gentleman across the junkyard, stepping out of his own blue police telephone box. Just as both men had stepped onto the ground, the old man collapsed towards the floor. The Doctor quickly rushed to the other man's side, half catching him in his arms.
"It's ok, I've got you," he reassured, "take it easy now…"
The man snapped back at him; "Unhand me young man, I'm more than capable to stand up!"
The Doctor moved his hands away but still remained crouched on the floor - "Doesn't look like it to me…"
The two men rose to their feet, the Doctor studying the other's face. The older man smoothed down his clothing, thumbing his lapels.
"I'm younger than I look" he said. The Doctor gave an amused smile and his eyes glazed over, moving to lean against the TARDIS panels:
"Yeah... and vice versa."
The white-haired Doctor smiled and looked at the suited man in front of him,"I know you, don't I?"he said chortling to himself, "Oh yes, the joys of time travel…"
"…And the pain", the skinny Doctor mumbled to himself.
"But not yet!" he grinned.
"The wonders of time, wonderful to meet you Doctor!" The Tenth Doctor took the First's hand and shook it.
The First Doctor looked into his other self's eyes, "My boy, it is you! You're me! A future version... Very future by the looks of things, do you get younger each time?"
The Tenth looked suddenly very saddened and uneasy, he put a hand on the Doctor's shoulder, "I'm sorry, I'm so sorry Doctor, but Blinovitch is going to have a field day with you and me here together..."
The First Doctor nodded "I see," he said and then smiled mischievously; "Care to join me, boy?"
The Tenth Doctor couldn't help remembering being this Doctor and he beamed broadly, his hands sinking into his pockets – "Oh, I'd love to Doctor!"