The Secret of NIMH
To save her ill son, a field mouse must seek the aid of a colony of rats, with whom she has a deeper link than she suspected.
Despite its small-scale budget of $7.0M, The Secret of NIMH became a commercial success, earning $14.7M worldwide—a 110% return.
2 wins & 2 nominations
Plot Structure
Story beats plotted across runtime
Narrative Arc
Emotional journey through the story's key moments
Story Circle
Blueprint 15-beat structure
Arcplot Score Breakdown
Weighted: Precision (70%) + Arc (15%) + Theme (15%)
The Secret of NIMH (1982) demonstrates deliberately positioned plot construction, characteristic of Don Bluth's storytelling approach. This structural analysis examines how the film's 15-point plot structure maps to proven narrative frameworks across 1 hour and 23 minutes. With an Arcplot score of 7.3, the film balances conventional beats with creative variation.
Structural Analysis
The Status Quo at 1 minutes (1% through the runtime) establishes Mrs. Brisby tends to her sick son Timothy in her modest cinderblock home, establishing her as a devoted mother living a quiet life on the Fitzgibbon farm.. Structural examination shows that this early placement immediately immerses viewers in the story world.
The inciting incident occurs at 11 minutes when Mrs. Brisby learns that Moving Day is imminent - the farmer will plow the field in five days, destroying her home. With Timothy too sick to move, she faces an impossible choice.. At 13% through the film, this Disruption is delayed, allowing extended setup of the story world. This beat shifts the emotional landscape, launching the protagonist into the central conflict.
The First Threshold at 21 minutes marks the transition into Act II, occurring at 26% of the runtime. This reveals the protagonist's commitment to Mrs. Brisby chooses to enter the rosebush and seek out the mysterious rats of NIMH, despite her fear, crossing into a world of secrets connected to her late husband Jonathan., moving from reaction to action.
At 42 minutes, the Midpoint arrives at 50% of the runtime—precisely centered, creating perfect narrative symmetry. Significantly, this crucial beat The rats agree to help Mrs. Brisby by using their equipment to move her cinderblock home to safety. She is given the magical amulet - the Stone - that belonged to Jonathan, a false victory before the dangers ahead., fundamentally raising what's at risk. The emotional intensity shifts, dividing the narrative into clear before-and-after phases.
The Collapse moment at 62 minutes (74% through) represents the emotional nadir. Here, During the house-moving operation, Jenner murders Nicodemus by cutting the ropes, crushing him under the cinderblock. The plan falls into chaos, and Mrs. Brisby's children are trapped in the sinking house., indicates the protagonist at their lowest point. This beat's placement in the final quarter sets up the climactic reversal.
The Second Threshold at 67 minutes initiates the final act resolution at 81% of the runtime. As Jenner tries to steal the amulet and kill Mrs. Brisby, Sullivan mortally wounds him. Mrs. Brisby realizes the Stone responds to her courage and love - she alone can save her children., demonstrating the transformation achieved throughout the journey.
Emotional Journey
The Secret of NIMH's emotional architecture traces a deliberate progression across 15 carefully calibrated beats.
Narrative Framework
This structural analysis employs systematic plot point analysis that identifies crucial turning points. By mapping The Secret of NIMH against these established plot points, we can identify how Don Bluth utilizes or subverts traditional narrative conventions. The plot point approach reveals not only adherence to structural principles but also creative choices that distinguish The Secret of NIMH within the animation genre.
Don Bluth's Structural Approach
Among the 8 Don Bluth films analyzed on Arcplot, the average structural score is 7.1, reflecting strong command of classical structure. The Secret of NIMH represents one of the director's most structurally precise works. For comparative analysis, explore the complete Don Bluth filmography.
Comparative Analysis
Additional animation films include The Bad Guys, Puss in Boots and Violet Evergarden: Eternity and the Auto Memory Doll. For more Don Bluth analyses, see The Land Before Time, Thumbelina and Rock-A-Doodle.
Plot Points by Act
Act I
SetupStatus Quo
Mrs. Brisby tends to her sick son Timothy in her modest cinderblock home, establishing her as a devoted mother living a quiet life on the Fitzgibbon farm.
Theme
Mr. Ages tells Mrs. Brisby that Timothy must not be moved for three weeks or he will die, establishing the theme that courage means doing what seems impossible when those you love are at stake.
Worldbuilding
The world of the Fitzgibbon farm is established: Mrs. Brisby's family life, the danger of the farmer's cat Dragon, and the annual threat of spring plowing that forces the field mice to move.
Disruption
Mrs. Brisby learns that Moving Day is imminent - the farmer will plow the field in five days, destroying her home. With Timothy too sick to move, she faces an impossible choice.
Resistance
Mrs. Brisby seeks help, first from Auntie Shrew, then by bravely drugging Dragon's food. Jeremy the crow suggests she visit the Great Owl, who cryptically directs her to seek the rats of NIMH.
Act II
ConfrontationFirst Threshold
Mrs. Brisby chooses to enter the rosebush and seek out the mysterious rats of NIMH, despite her fear, crossing into a world of secrets connected to her late husband Jonathan.
Mirror World
Mrs. Brisby enters the rats' extraordinary underground civilization and meets Nicodemus, the wise leader who reveals the truth about Jonathan Brisby's heroic past and her own hidden legacy.
Premise
Mrs. Brisby discovers the secret of NIMH: the rats were laboratory subjects who gained intelligence and escaped. She learns Jonathan was a hero who died helping them, and they agree to move her home using their technology.
Midpoint
The rats agree to help Mrs. Brisby by using their equipment to move her cinderblock home to safety. She is given the magical amulet - the Stone - that belonged to Jonathan, a false victory before the dangers ahead.
Opposition
Jenner's treachery unfolds as he plots to kill Nicodemus and seize power. Mrs. Brisby is captured while trying to drug Dragon and taken into the Fitzgibbon house, learning NIMH exterminators are coming for the rats.
Collapse
During the house-moving operation, Jenner murders Nicodemus by cutting the ropes, crushing him under the cinderblock. The plan falls into chaos, and Mrs. Brisby's children are trapped in the sinking house.
Crisis
Jenner reveals his treachery and attacks Justin. Mrs. Brisby watches helplessly as her home sinks into the mud with her children inside, facing the apparent loss of everything she fought to save.
Act III
ResolutionSecond Threshold
As Jenner tries to steal the amulet and kill Mrs. Brisby, Sullivan mortally wounds him. Mrs. Brisby realizes the Stone responds to her courage and love - she alone can save her children.
Synthesis
Mrs. Brisby activates the Stone's power through her desperate courage, lifting her home from the mud and moving it to safety. Justin defeats Jenner, and the rats prepare to leave for Thorn Valley.
Transformation
Mrs. Brisby stands with her healthy children in their new safe home, transformed from a timid widow into a courageous hero who discovered her own inner strength and earned her place in her husband's legacy.