Bilbo is a hobbit that lives in a cozy hole. He meats a wizard named Gandalf. He tells Bilbo to expect him at tea time at 4 on Wednesday.
When Gandalf shows up he brings a lot of dwarfs with him, and a plan to raid a dragons.
So Bilbo joins them on there quest. They go through the mountains make friends with elves and get caught by goblins.
When they reach the mountain they find Smuag the magnificent. He flies out of his cave and destroys nearly a whole village. Then Brad slays Smuag.
When the Goblins hear about this they head over to the mountains, trying ti get revenge on the elves and dwarfs. That is when the battle of the five armies is fought. In that battle many elves and dwarfs die.
Bilbo returns with lots of gold and silver, home after a long and tiring journey.