It's Time Travel, Dearie.

Rose

"Where are we?" Rose leans against the console, a wide smile on her face.
"A place." The Doctor answers, flicking levers.
"Wow. Thanks." Rose laughs.
"America. 2014."
Rose nods. "Alright." She walks to the door and opens it.
They landed outside a town.
"It's such a cute little town!" Rose smiles and walks towards it.
"Storybrooke.." She says.
"Sounds like a fantasy town." The Doctor says looking around.
"Hello." A blonde walks up to them. "I haven't seen you two around here before."
"Oh we're the doctor and Rose! Professional health inspectors." The Doctor shows her the psychic paper.
"Funny. That paper's blank. Who are you really?"
Rose looks at the Doctor.
"I'm not sure you'll understand."
The blonde rolls her eyes. "Try me."
The blonde introduces herself as Emma, and Rose and the Doctor tell her about them and how they time travel. Emma doesn't say anything, she just nods and listens to their story.
"Emma?" A woman walks in pushing a baby carriage. "Snow told me you would be here. She told me I could leave Neal here."
Emma nods. "Thanks Belle."
Belle looks over at Rose and the Doctor and smiles. "Are you two new here?"
Rose nods with a smile.
"Oh lovely! We don't usually get newcomers here. I'm Belle."
Rose smiles. "I'm Rose, and this is the Doctor. Nice to meet you."
The Doctor stays and talks to Emma some more and Rose goes with Belle who shows her around.
"This town is lovely."
Belle laughs. "It really is."
"What's the story here?"
Belle sighs. "You wouldn't understand."
Rose laughs. "I'll tell you my story if you tell me about the town."