ThisStar Wars: The Force Awakenspost contains many, manyspoilers.
If the plot ofThe Force Awakensseems familiar, theres an explanation for that.
(Its bigger.)

Credit: Lucasfilm
And Kylo Rens resemblence to a certain dark lord of the Sith isnt a coincidence.
The bad guy with major Skywalker connections is desperate to live up to his grandfathers legacy and his wardrobe.
(Although, the parallels do ultimately holdThe Force Awakensback a bit.)
That being said, lets take a look at the ways thatEpisodes IVandVIImirror each other.
Theres a droid carrying valuable information who finds himself on a desolate desert planet.
Theres a desert settlement that is wiped out by stormtroopers.
Theres a hero whos tortured by the bad guys to retrieve the information.
Theres a lonely, Force-strong desert dweller who dreams of more.
Theres a worldly old warrior who has to explain the Force to the next generation.
Theres a mostly unseen supreme evil thats pulling the strings from the shadows.
Theres a cantina filled with various alien creatures.
Theres a massive spherical weapon thats used to destroy a planet.
Theres a base belonging to the rebel forces on a forest-covered world.
The hero watches helplessly from afar as the surrogate father figure is slayed.
Theres a coordinated aerial attack on the massive spherical weapon thats monitored from a control room by Leia.