Canon Version

"Someday, Jack," Gwen Cooper began in a long suffering tone, "Someday, you're going to explain to me why we keep coming to Chiswick, of all places, just to run a few scans on some mystery woman, then turn around and go home."

Jack sighed, thinking that he really did owe her an explanation. Gwen had only seen the Doctor on a vid screen, and didn't really have the proper context for what they were doing here today, or why it was so important to him. He was struggling to find a good starting point when someone tapped on the vehicle's window, pointing a weapon at him. He grimaced and lowered the window. "That's a paint ball gun," he said to the elderly gent who was aiming it at him.

"And I'm at point blank range," the old fellow assured him. "I don't imagine you'd fancy a face fulla paint. Now, you two can get your 'ands up, and tell me what you're doing outside my house."

Jack plastered on his most harmless smile and slowly raised his hands, jerking his head at Gwen to do the same. "Sir, really, we just got a bit turned around and stopped to check the GPS, that's all," Jack said smoothly.

"Yeah, well I've noticed your GPS gets turned around on this street about once a month. Now, who are you? You ain't some kind of alien, are you?"

Gwen snickered, and Jack just sighed.

"You're Wilfred Mott, aren't you, sir?" Jack asked.

"What if I am?"

"I'm a friend of your granddaughter."

"A friend of Donna's, eh? We'll just see about that."

Jack reached out swiftly and grabbed the old man's arm. "No! She won't remember me, and if she sees me, if she starts to remember, it could hurt her."

Wilf's eyes narrowed suspiciously. "How'd you know about that?"

"Because I'm also a friend of the Doctor. He asked me to keep an eye on Donna."

"God bless ya, lad! Why didn't you say so in the first place?" Wilf exclaimed, finally lowering the paint ball gun.

"Because we're supposed to be being subtle about this," Gwen said acidly.

"What's your name, lad?"

"Captain Jack Harkness, and my colleague here is Gwen Cooper."

Gwen smiled and waved. "Hi."

"Why're you two here?" Wilf demanded.

"We're here because, even though she doesn't remember it, your granddaughter once saved the universe."

Gwen's eyes widened in surprise.

"I made the Doctor a promise, Mr. Mott," Jack said firmly. "I promised him I'd look after Donna. I won't let anything happen to her."

Wilf looked long and hard into Jack's eyes…eyes that reminded him strangely of the Doctor, so very old, in such a young face. "Are you sure you ain't an alien?" he asked slowly. "You got eyes like him."

Jack knew full well that 'him' meant the Doctor. "No," he said softly. "I'm human. I've just traveled a lot, that's all."

"No," Wilf said slowly, trying to grasp a concept that floated just out of his understanding. "There's something else…"

"Jack," Gwen suggested quietly, "Maybe we should sit down with Mr. Mott and have a nice cup of tea?"

"No, Gwen. That won't be necessary. We can count on his discretion."

"That you can mate. I know how to keep my mouth shut. But you lot! You call this subtle? I seen you here six times, same car an' all," Wilf said smugly.

"All right, then, we'll be on our way," Jack said pleasantly.

"I really think we should have Retcon'd him," Gwen muttered as they pulled away.

"No need. For one thing, we can count on his discretion - this is his granddaughter's life we're talking about, and for another, he's spotted us in this car six times…he didn't say anything about the other four."