Writing Act III of a book or script: The New Plan

Here, very simply, are the broad strokes of Act III of a book or script:

At the end of Act II: Part 2 (about p. 300 in a 400-page book, about 90 minutes in to a 2 hour movie) everything crashes in an All is Lost Moment, or Black Moment, or Visit to Death.

And then, out of that complete despair comes a Revelation, Clue or Twist for the Hero/ine

That leads to a New Plan for the Final Battle.

The Hero/ine makes that last New Plan

Possibly Gathers the Team (Allies) again and briefs them on the Plan

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