Frodo's overarching journey across the course of The Lord of the Rings revolves around carrying the One Ring to Mount Doom and ensuring its destruction, which would finally eradicate the evil of Sauron once and for all. The burden is a crushing one, as the malice within the One Ring eats away at Frodo over the course of the trilogy. Making matters worse is Gollum, who had possessed the Ring for centuries and served as a guide to the heroes — and a constant reminder of Frodo's challenge.
Source：https://www.cbr.com/frodo-gollum-form-cut-scene-lord-of-the-rings/
