During World War II, Lt. Michael Grayson (Van Johnson) is a newly commissioned American Army officer who looks forward to being assigned to the 36th Texas Division. Instead, he is put in charge of Japanese-American soldiers, who form the 442nd Regimental Combat Team. Grayson is bigoted and uneasy about the assignment, but when the unit goes into combat in Italy, he admires their courage and determination. The 442nd eventually becomes the most decorated unit in the U.S. Army.