Under the command of Admiral Nimitz in 1943, America advances towards Japan, engaging in a new series of island-hopping invasions through the Central Pacific. But a ferocious and inauspicious start at the Tarawa atoll forces war strategists to redesign their plan from top to bottom, sparking new innovations and breaking new barriers. With color combat footage and accounts from those who experienced the fight firsthand, this is an intimate look at some of the costliest and most critical battles of World War II.

After a disastrous start, Admiral Chester Nimitz's island-hopping campaign across the Central Pacific has gained momentum and led his men to their largest and most important target yet: Saipan in the Mariana Islands. The nearly month-long battle on this island featured mountain sieges, Banzai attacks, white-knuckled dogfights, and escalating tensions between the U.S. Army and Marines. Color combat footage and testimony from the soldiers who were there bring this seminal moment of the Pacific War to life.

By the summer of 1944, America increasingly controlled the seas and skies of the Pacific, but the fighting on land remained bloody and brutal. As U.S. forces battled for two islands at once, Japan used ingenious dug-in bunkers and caves to make them pay for every inch of ground. Discover America's strategic and personal motivations behind their simultaneous invasions of Tinian and Guam and witness their far less successful plan to strike Japan from India and China with the new, troubled aircraft, the B-29.

March 1945. Japan feels the pressure coming from all fronts-ships from the sea, boots on the ground, and fire from the sky. The Japanese Empire has been weakened, but there is no sign of surrender. Through rarely seen color combat footage and frontline stories, witness the American invasions of Peleliu, the Philippines, and Iwo Jima, in addition to the war's first organized kamikaze attacks and the deadly raid on Tokyo.

The Allies celebrate the end of the war in Europe, but the Pacific War rages on. Okinawa, the last stop in the island-hopping campaign to the Japanese mainland, is absolute havoc, with Japan sending an unprecedented wave of kamikaze attacks to destroy Allied warships. Meanwhile, Australians liberate Indonesians from three years of oppressive Japanese occupation in Borneo. Witness the final battles of the Second World War, captured with rare behind-the-scenes film and color combat footage.

By the summer of 1945, the Allies are reducing Japan to ashes, but there's no sign of surrender. While a ground invasion seems imminent, a casualty estimate of U.S. soldiers in the hundreds of thousands leads President Truman to a decision that will not only end the war, but forever change the course of warfare. Color combat footage and witness accounts of the atomic bombings provide rare insights into the final days of the Pacific War.