In 1937, just years prior to the onset of World War II, a crucial conversation unfolds between the US Naval attache in Tokyo and his Japanese counterpart at a pivotal state function. During this meeting, Isoroku Yamamoto (Etsushi Toyokawa), the Commander-in-chief of the Combined Fleet, discreetly warns Edwin T. Layton (Patrick Wilson), an intelligence officer for the US Pacific Fleet, that Japan will take decisive action if their oil supplies are jeopardized.
On December 7, 1941, the Japanese fleet launches a devastating assault on Pearl Harbor, marking the United States’ entry into World War II. In the wake of this catastrophic event, a shake-up in command occurs at Pearl Harbor, as Admiral Chester W. Nimitz (Woody Harrelson) is appointed commander of the severely damaged US Pacific Fleet. Later, Layton confronts Nimitz regarding his inability to alert Washington about the imminent attack, and Nimitz urges him to remain resolute in the face of challenges from command to prevent a repeat of such a surprise onslaught.
Meanwhile, Lieutenant Commander Wade McClusky (Luke Evans) finds himself onboard the USS Enterprise, stationed 170 miles from Pearl Harbor that fateful morning. Fortunately, this strategic positioning spares the carrier fleet from the initial wave of the Japanese attack, thus thwarting their objective to eliminate the US carriers. Among the crew are notable personnel such as Bruno Gaido (Nick Jonas), Lieutenant Clarence Earle Dickinson (Luke Kleintank), Ensign Willie West (Jake Manley), and others.
As the battle rages on, Lieutenant Roy Pearce ([Alexander Ludwig]) stands as the watch officer of the USS Arizona, bravely met with demise amidst the destruction of his ship. In contrast, Vice Admiral William "Bull" Halsey ([Dennis Quaid]) swiftly tracks Japanese carrier movements, grappling with the challenge of pinning down their locations as intelligence reports reveal a full-scale assault from the Japanese fleet.
The Japanese naval leaders express frustration over missed opportunities; Yamamoto is particularly upset with Vice Admiral Chuichi Nagumo ([Jun Kunimura]), who elected not to obliterate the oil tankers at Pearl Harbor, a decision that could have significantly hindered US operations for an extended period.
Transitioning to February 1st, Nimitz propels Halsey's battle group to assault Japanese positions at the Marshall Islands. Despite being outnumbered and suffering from supply issues, the brave pilots deliver significant damage to Japanese forces. A daring act by Machinist Bruno Gaido helps repel a kamikaze strike, showcasing the resilience of American forces.
In April 1942, post the Doolittle Raid, led by Lieutenant Colonel Jimmy Doolittle (Aaron Eckhart), the Japanese focus shifts towards the Coral Sea. Tensions mount as information leaks concerning the Japanese naval fleet's movements; cryptologists under Joseph Rochefort (Brennan Brown) start intercepting critical communications tied to a location referred to as "AF". Layton suspects that this target is in fact Midway Atoll, challenging Washington’s belief that it could be an Aleutian site.
On June 4, the Japanese launch an all-out air assault on Midway. The initial attempts by US land-based aircraft yield no successes, but a US submarine pinpoints a Japanese carrier, albeit missing the shot. As the battle unfolds, C. Wade McClusky leads a drastic offensive against the Japanese fleet, resulting in the destruction of key carriers.
Eventually, amidst heavy combat intelligence, Lieutenant Richard "Dick" Best (Ed Skrein), the executive officer of Bombing Squadron Six, musters a group of remaining pilots to target Hiryu. A crucial hit by Best ensures the destruction of the last Japanese carrier, causing Admiral Yamamoto to order a retreat, effectively ending the brutal Battle of Midway.
In the aftermath, intelligence intercepts confirm Japan's withdrawal, leading to a pivotal victory for the United States. The narrative culminates with Nimitz’s momentous arrival in Tokyo Bay to accept the Japanese surrender on September 2nd, 1945. The fates of those involved unfold, revealing the consequences of war, including the tragic aftermath faced by those who supported Doolittle’s escape and the legacy of the young pilots like Best, who would never again take to the skies due to a battle with TB, becoming legendary for his unprecedented strike.
