“We are plain quiet folk and have no use for adventures. Nasty disturbing uncomfortable things! Make you late for dinner! I can’t think what anybody sees in them.”
The Doctor and Rose accidentally end up in a universe where The Hobbit written by J. R. R. Tolkien is not just words on paper, but a real world of Elves, Dwarves, Hobbits, Dragons and many other creatures. After they run into Bilbo Baggins, the protagonist of the said book, they experience a great adventure none of them will ever forget.
“I can’t just go running off into the blue. I’m a Baggins of Bag End!” -The Hobbit: An Unexpected Journey (2012)