Here’s a 70 word version restoring some of the wording of the original to make it as easy to understand as possible:

It is a time of despair.
Luke Skywalker, striving
to restore the peacekeeping
Jedi Order, has vanished.

In his absence, the sinister
FIRST ORDER has risen from
the ashes of the Empire to
terrorize worlds throughout
the peaceful New Republic.

With the Republic divided,
a few brave senators have
secretly called upon a daring
RESISTANCE to find the
missing last Jedi and restore
peace and justice to the
darkening stars…