The film reconstructs how strategic pressure, intelligence failures, and institutional delays culminate in the attack on Pearl Harbor and its lasting consequences.
Story Structure — 5 Plot Phases
Japan Chooses Confrontation
Economic pressure and political factionalism push Japan toward an alliance and war planning. Yamamoto reluctantly accepts responsibility for a dangerous Pacific strategy.
Key Events
Embargo Pressures Japan — A severe American trade embargo intensifies pressure on Japan and contributes to preparations for war.
Location: Japan
Axis Alliance Approved — Army figures and politicians push Japan into an alliance with Germany and Italy despite naval opposition.
Location: Japan
Yamamoto Accepts Command — Yamamoto becomes Commander-in-Chief and reluctantly considers a pre-emptive Pacific strike. Characters: Admiral Isoroku YamamotoLocation: Japan
Pearl Harbor Plan Forms — Yamamoto concludes that Japan must quickly annihilate the American fleet at Pearl Harbor. Characters: Admiral Isoroku YamamotoLocation: Japan
Warnings Beneath Diplomacy
American intelligence detects coded evidence of expanding Japanese naval activity. Defensive measures increase in Hawaii while diplomatic negotiations continue to conceal the military timetable.
Key Events
Radio Intelligence Breakthrough — American intelligence breaks the Japanese code and detects increased naval activity. Characters: Colonel Rufus S. BrattonLocation: Washington
Hawaii Defense Increases — Kimmel increases naval and air patrols around Hawaii as tensions rise. Characters: Admiral Husband E. KimmelLocation: Pearl Harbor
Aircraft Concentrated — Aircraft are concentrated on runways to prevent sabotage, leaving them vulnerable to an air attack.
Location: Oahu airfields
Diplomatic Talks Stall — Japanese diplomatic negotiations continue while the military preparations proceed.
Location: Washington
The Unheard Alarm
Bratton interprets the sequence of intercepted messages as a sign of imminent attack and seeks action. Delayed decisions, transmission problems, and an unmarked telegram prevent an effective warning.
Key Events
Fourteen Messages Identified — Bratton learns that fourteen messages will precede the destruction of Japanese code machines. Characters: Colonel Rufus S. BrattonLocation: Washington
Bratton Seeks Action — Bratton deduces that the messages signal a coming surprise attack and tries to warn his superiors. Characters: Colonel Rufus S. BrattonLocation: Washington
Warning Delayed — Indecision over notification prevents the intelligence warning from reaching Hawaii promptly.
Location: Washington
Telegram Fails Transmission — Atmospheric conditions block radio transmission, while the warning telegram is not marked urgent.
Location: Washington to Hawaii
Surprise Over Hawaii
The Japanese fleet launches its aircraft while radar and submarine reports are dismissed. The attack begins with complete surprise and devastates Pearl Harbor.
Key Events
Japanese Fleet Launches — The Japanese fleet launches its aircraft at dawn on December 7, 1941. Characters: Admiral Isoroku YamamotoLocation: North Pacific
Radar Contact Dismissed — Two radar operators detect approaching aircraft, but the report is dismissed by the duty officer.
Location: Oahu radar station
Submarine Warning Dismissed — A report claiming that a miniature submarine was sunk near the harbor entrance is treated as unimportant.
Location: Pearl Harbor entrance
Tora Surprise Signal — The Japanese achieve total surprise, and the attack leader signals success with “Tora! Tora! Tora!”
Location: Pearl Harbor
Pearl Harbor Devastated — Japanese aircraft sink or damage battleships and destroy American aircraft concentrated on the ground. Characters: Admiral Husband E. KimmelLocation: Pearl Harbor
Victory With Consequences
The late diplomatic message exposes that the attack began before the formal end of negotiations. The absence of American aircraft carriers and the delayed warning complicate the Japanese victory.
Key Events
Diplomatic Ultimatum Arrives — The Japanese ultimatum reaches American officials after the attack has already begun.
Location: Washington
Third Wave Abandoned — The Japanese fleet commander refuses a scheduled third wave because of the danger from American submarines.
Location: Japanese fleet
Primary Targets Missing — Yamamoto learns that the American aircraft carriers were absent from Pearl Harbor during the attack. Characters: Admiral Isoroku YamamotoLocation: Japanese flagship
Warning Reaches Hawaii — Kimmel finally receives the warning of impending danger hours after the attack has ended. Characters: Admiral Husband E. KimmelLocation: Pearl Harbor
Sleeping Giant Awakened — Yamamoto laments the delayed declaration of war and fears the attack has awakened American resolve. Characters: Admiral Isoroku YamamotoLocation: Japanese flagship
Story Breakdown
Economic Pressure — An embargo and worsening international tensions create the conditions for Japan's movement toward war.
Trade Embargo — A severe American embargo increases pressure on Japan.
Axis Alliance — Political and military figures push through an alliance with Germany and Italy.
Japanese War Planning — Yamamoto's command transforms political confrontation into a detailed Pacific strike plan.
Reluctant Strategy — Yamamoto plans a pre-emptive attack despite recognizing its dangers.
Pearl Harbor Target — The American fleet at Pearl Harbor becomes the primary objective.
American Intelligence — Codebreaking reveals signs of Japanese naval activity and a carefully timed message sequence.
Purple Code — American intelligence intercepts secret Japanese radio transmissions.
Fourteen Messages — The message sequence suggests that a surprise attack will follow.
Failed Warnings — Warnings fail to become timely defensive action because of indecision and communication obstacles.
Bratton's Alarm — Bratton tries to alert his superiors after interpreting the intercepts.
Blocked Telegram — Atmospheric conditions and a non-urgent telegram delay the warning.
Hawaii Vulnerability — Defensive decisions leave aircraft exposed and allow several indicators of danger to be dismissed.
Grounded Aircraft — Aircraft are concentrated on runways to prevent sabotage.
Dismissed Contacts — Radar and submarine reports are treated as insignificant.
Pearl Harbor Attack — The Japanese achieve surprise, inflict catastrophic damage, and confront the consequences of an incomplete victory.
Tora Signal — The attack leader signals that total surprise has been achieved.
Awakened Resolve — Yamamoto fears the attack has created powerful American determination.
In the summer of 1941, the United States and Japan seem on the brink of war after constant embargos and failed diplomacy come to no end. "Tora! Tora! Tora!", named after the code words used by the lead Japanese pilot to indicate they had surprised the Americans, covers the days leading up to the attack on Pearl Harbor, which plunged America into the Second World War.
