And the plot of TTT is ....?
Answer: Episodic. Comprised of three main episodes
They're not three episodes, they're three plotlines. There is a massive difference.
FOTR episode 1: Hey, look at these tasty mushrooms. AAAAAAAAHHHH!! Some scary black thing is on the road!! Ruuuuun!!!!! ... *phew* Now we're safe.
FOTR episode 2: Do you know how to get to Bree. AAAAAAAAAAAAAH!! More scary black things are in the bushes!! Run towards the river!!!! ... *phew* Now we're safe.
FOTR episode 3: Want some nice, crispy bacon? AAAAAAAAAAAAAH!!! Even more scary black things are hunting us up this hil!!! Set 'em on fire!! ... *phew* Now we're safe.
Shall I continue?
A huge portion of FOTR is made of a string of encounters which have little to no bearing on the plot as a whole or the character's development. Weathertop above might be an exception due to the stabbing being a necessary plot point but otherwise there is little sense of
purpose to alot of what happens. You could easily cut out a good quarter, if not more, of FOTR without affecting the storyline or meaning or characters in the slightest. Add to that that the storyline isn't really
about anything in an emotional or thematic sense. It is purely a story about a group of people going from point A to point B. That's not to say that some meaningful things aren't said/done, but the story
as a whole isn't
about anything.
None of that applies to TTT.
The Rohan storyline is
about courage and faith in the face of the grimmest darkness. It's
about determination and perserverance, about following through with the
right thing to do even to the death. The storyline doesn't
contain moments about that, that is what the storyline
is. And the vast majority of the scenes flow with the emotional theme, from the early scenes with the Three Hunters, to the choices our heros make in Rohan, to the glorious final stand in Helm's Deep. The plotline is extremely cohesive and united and flows very naturally throughout with
ideas and not merely events
a la FOTR.
The Merry & Pip storyline plays with the same theme but from a different angle, from the angle of the non-heros M & P. Their storyline is about their growth as characters and them learning what the Rohan heroes already are living - that the darkness must be confronted even in the face of hopelessness. Treebeard is the beautiful representative of complacency, who says "this is not our war" but is eventually shown the consequences of that complacency. Their storyline ties in
beautifullly with the Rohan storyline from a thematic standpoint. It is utter genious, imo.
The F & S & G storyline continues with the idea but from a much more subtle & difficult angle - what if the darkness that you're facing is not external but
internal? The war here becomes almost entirely a psychological one and as such is the most difficult and intense of the three. But nonetheless, it is part of the same struggle and the brilliant weaving of the threads through that same tapestry emphasize that. This storyline comes closest to total despair but our grand finale ties it all together.
Majestically, the film ultimately rejoices that even in the very face of death, goodness and hope remain and that it is worth fighting for. With the exception of only a handful of scenes, practically every moment in the film is used to
build towards that grand thematic exclamation mark. FOTR has no theme - no
point - build towards and so ultimately it doesn't really matter if that avalanche had fallen or not, if the watcher had attacked or not, if the staircase had crumbled or not. As long as Frodo ends up in Point B in the end, it doesn't end up mattering all that much
how he got there.