Lethal Weapon 4 poster
7.3
Arcplot Score
Unverified

Lethal Weapon 4

1998127 minR
Director: Richard Donner

With personal crises and age weighing in on them, Riggs and Murtaugh must contend with deadly Chinese triads trying to free their former leaders from prison and onto American soil.

Revenue$285.4M
Budget$140.0M
Profit
+145.4M
+104%

Despite a substantial budget of $140.0M, Lethal Weapon 4 became a financial success, earning $285.4M worldwide—a 104% return.

TMDb6.6
Popularity4.4
Where to Watch
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Plot Structure

Story beats plotted across runtime

Act ISetupAct IIConfrontationAct IIIResolutionWorldbuilding3Resistance5Premise8Opposition10Crisis12Synthesis14124679111315
Color Timeline
Color timeline
Sound Timeline
Sound timeline
Threshold
Section
Plot Point

Narrative Arc

Emotional journey through the story's key moments

+31-1
0m31m62m94m125m
Plot Point
Act Threshold
Emotional Arc

Story Circle

Blueprint 15-beat structure

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Arcplot Score Breakdown

Structural Adherence: Standard
8.5/10
5/10
4/10
Overall Score7.3/10

Weighted: Precision (70%) + Arc (15%) + Theme (15%)

Lethal Weapon 4 (1998) demonstrates meticulously timed plot construction, characteristic of Richard Donner's storytelling approach. This structural analysis examines how the film's 15-point plot structure maps to proven narrative frameworks across 2 hours and 7 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 Riggs and Murtaugh chase suspects in a wild car pursuit, showcasing their partnership dynamic. Both are older but still doing dangerous police work, establishing their "too old for this" baseline.. The analysis reveals that this early placement immediately immerses viewers in the story world.

The inciting incident occurs at 15 minutes when The team discovers a Chinese immigrant smuggling ring when they find imprisoned families in a freighter. This introduces antagonist Wah Sing Ku and the Triad operation, disrupting their routine police work.. At 12% through the film, this Disruption aligns precisely with traditional story structure. This beat shifts the emotional landscape, launching the protagonist into the central conflict.

The First Threshold at 31 minutes marks the transition into Act II, occurring at 25% of the runtime. This illustrates the protagonist's commitment to Riggs and Murtaugh commit to taking down Ku and the Triad operation despite the risks. They actively choose to dive into this dangerous world rather than play it safe before retirement., moving from reaction to action.

At 63 minutes, the Midpoint arrives at 50% of the runtime—precisely centered, creating perfect narrative symmetry. Of particular interest, this crucial beat Ku kills Detective Ng and escapes, demonstrating his lethal capabilities. False defeat: the investigation seems to be slipping away, and the villain proves more dangerous than anticipated. Stakes raise dramatically., fundamentally raising what's at risk. The emotional intensity shifts, dividing the narrative into clear before-and-after phases.

The Collapse moment at 94 minutes (74% through) represents the emotional nadir. Here, Murtaugh's home is invaded and burned by Ku. The family sanctuary is destroyed - a metaphorical death of safety and the old life. Rianne goes into labor during the chaos, raising fear for her life., illustrates the protagonist at their lowest point. This beat's placement in the final quarter sets up the climactic reversal.

The Second Threshold at 102 minutes initiates the final act resolution at 80% of the runtime. Learning Ku's location at the docks, the team synthesizes their skills with new resolve. They'll fight not just as cops, but as fathers protecting their families. New information enables the final confrontation., demonstrating the transformation achieved throughout the journey.

Emotional Journey

Lethal Weapon 4's emotional architecture traces a deliberate progression across 15 carefully calibrated beats.

Narrative Framework

This structural analysis employs a 15-point narrative structure framework that maps key story moments. By mapping Lethal Weapon 4 against these established plot points, we can identify how Richard Donner utilizes or subverts traditional narrative conventions. The plot point approach reveals not only adherence to structural principles but also creative choices that distinguish Lethal Weapon 4 within the action genre.

Richard Donner's Structural Approach

Among the 15 Richard Donner films analyzed on Arcplot, the average structural score is 6.9, demonstrating varied approaches to story architecture. Lethal Weapon 4 represents one of the director's most structurally precise works. For comparative analysis, explore the complete Richard Donner filmography.

Comparative Analysis

Additional action films include The Ministry of Ungentlemanly Warfare, The Bad Guys and Lake Placid. For more Richard Donner analyses, see Ladyhawke, Superman and Lethal Weapon 2.

Plot Points by Act

Act I

Setup
1

Status Quo

1 min0.8%+1 tone

Riggs and Murtaugh chase suspects in a wild car pursuit, showcasing their partnership dynamic. Both are older but still doing dangerous police work, establishing their "too old for this" baseline.

2

Theme

6 min5.0%+1 tone

Murtaugh complains about getting too old for police work and wanting to reach retirement safely. The theme of aging, family responsibility, and legacy versus reckless youth is introduced.

3

Worldbuilding

1 min0.8%+1 tone

Establish the team dynamics: Riggs is with Lorna (pregnant), Murtaugh is about to be a grandfather (daughter Rianne is pregnant), and Leo Getz is now a private investigator. Captain Murphy oversees them all.

4

Disruption

15 min11.6%0 tone

The team discovers a Chinese immigrant smuggling ring when they find imprisoned families in a freighter. This introduces antagonist Wah Sing Ku and the Triad operation, disrupting their routine police work.

5

Resistance

15 min11.6%0 tone

Investigation into the Triad operation deepens. Detective Ng provides information. Riggs and Murtaugh debate taking on this dangerous case given their age and family situations. Leo helps with his counterfeiting expertise.

Act II

Confrontation
6

First Threshold

31 min24.8%+1 tone

Riggs and Murtaugh commit to taking down Ku and the Triad operation despite the risks. They actively choose to dive into this dangerous world rather than play it safe before retirement.

7

Mirror World

37 min28.9%+2 tone

The family relationships deepen: Lorna and Riggs discuss their future baby, Murtaugh bonds with pregnant Rianne. The domestic subplot mirrors the theme of responsibility and legacy.

8

Premise

31 min24.8%+1 tone

Classic Lethal Weapon action: investigations, stakeouts, comedic banter between the team. Confrontations with Triad members escalate. The promise of "buddy cop action-comedy" is delivered with set pieces and humor.

9

Midpoint

63 min49.6%+1 tone

Ku kills Detective Ng and escapes, demonstrating his lethal capabilities. False defeat: the investigation seems to be slipping away, and the villain proves more dangerous than anticipated. Stakes raise dramatically.

10

Opposition

63 min49.6%+1 tone

Ku and the Triads close in on the heroes. Multiple confrontations escalate. Murtaugh's family is threatened. The counterfeiting scheme's full scope is revealed. Pressure intensifies from all sides.

11

Collapse

94 min74.4%0 tone

Murtaugh's home is invaded and burned by Ku. The family sanctuary is destroyed - a metaphorical death of safety and the old life. Rianne goes into labor during the chaos, raising fear for her life.

12

Crisis

94 min74.4%0 tone

In the hospital, Murtaugh processes the violation of his home and threat to his family. Riggs faces becoming a father. Both partners reflect on what really matters: protecting family versus revenge.

Act III

Resolution
13

Second Threshold

102 min80.2%+1 tone

Learning Ku's location at the docks, the team synthesizes their skills with new resolve. They'll fight not just as cops, but as fathers protecting their families. New information enables the final confrontation.

14

Synthesis

102 min80.2%+1 tone

Massive finale at the docks. The entire team (Riggs, Murtaugh, Butters, Leo) confronts the Triads. Extended fight between Riggs/Murtaugh and Ku underwater and on docks. Villain defeated, operation shut down.

15

Transformation

125 min98.3%+2 tone

Both babies are born healthy. Riggs marries Lorna at the hospital. Murtaugh holds his grandchild. The final image shows the transformed men: no longer reckless cops, but family men who fought to protect what matters most.