Goals and the Premise

Whatever it is you Pitch to someone about your story should be there in the first scene.

Whatever you say your main characters goal is, should be established in the first scene.

Don't make the audience/reader sit around, waiting for the goal and premise to enter the story.

Antagonist - Protagonist

Make it clear what each WANTS.

And don't forget that each has a  WANT and a symbiotic CO-WANT

In other words, a WANT and a NEED
In other words, a WANT and a MOTIVATION

The WANT revolves around a person, place, or thing.
The CO-WANT revolves around a person place or thing.

One character says, "I want to put up a picture of my dead mother."
Another character says. "No.  There will be no pictures of her in this house."

That's WANT

Here's CO-WANT
One character says, "I want people to remember her when they are here.  She was a strong woman and made us who we are.  I want to keep that dignified personality alive here."
Another character says, "I want people to forget about her.  She was a bitch. I want to let loose in the house and not think of her looking over my shoulder."

1) Picture of mom
2) Loose Personalities vs. dignified personalities

And the CO-WANT should suggest a relationship conflict BEYOND the protag and antag.