When a devastating drought threatens to annihilate his people,a boy finding himself in a magical world, where a holier-than-thou general has conquered the makers of the rain, must device battle plans to topple him from within and without, to save his world.

Please as a result of your previous reviews, I am back with these two loglines.
Thanks in advance for helping me fine tune it .

1.When his land is devastated by a mystical drought, a simple farm boy sets out on a
quest to stop the evil general who has conquered the magical rainmakers.

2.When his land is devastated by a mysterious drought, a simple farm boy must set out
to defeat the evil general who has conquered the mystical rainmakers and save his land from the drought .

I'm very grateful for the wonderful reviews.
I need to reorganize and come back.

Agreed with the above comments.

Redraft the logline with a cause and effect relationship in mind. In other words - as a result of an event, a character must achieve a goal.

When you write "...When a devastating drought threatens to annihilate his people..." this is actually not true. It's not the drought but the general who threatens to annihilate his people by using a magical drought.

For example:
After a crazed general conquers the mystical rainmakers, a simple farm boy must raise a rebellion to defeat the general and save his land from drought.