A goal tied to a need is even more emotional (readers and audiences connect to characters through honest "shows" of emotion).
Tie that need to a higher good is even better.
The exotic world of the film, Winter's Bone, adaptation of Daniel Woodrell's novel and screenplay by Debra Granik, and the protagonist mesmerized me to the very last moment, though rarely am I attracted to dark and bleak movies.
The protagonist with a goal to find her father drives the story. That her goal is tied to a desperate need to save the house and care for her younger siblings and an ailing mother sends the intensity of the story higher and creates thematic significance.
Haunting story with compelling action makes for a satisfying story...
To watch the entire Plot Series: How Do I Plot a Novel, Memoir, Screenplay? go to my YouTube channel. Currently, there are 21 Steps. Enjoy!