I finished the Hobbit on Monday, so here is my synopsis of the book.
Hobbits are a very respectable kind of people that hardly EVER go on adventures, so at first Bilbo Baggins wants nothing to do with the thought of going on an adventure with Dwarves and a Wizard. But at last they convince him to come.
This adventure has many dangers that Bilbo does not expect, not the least of which is a giant dragon named Smaug, also a creature named Gollum, in Gollum's cave Bilbo finds a ring that will turn him invisible, with this power he convinces the Dwarves that he is a master burglar. And uses this new found skill to complete many tasks