A soldier has a ten-day leave from his military duties. He’s an easygoing guy who rarely thinks about his sometimes reckless behavior until he tempts fate once too often.
An elderly lady, who has lost her only son in the war, turns her house into a pension. It is also the custody of a mysterious document that his son entrusted to him, and which is coveted by many people .
I'll Get By is an updated remake of the 1940 20th Century-Fox musical Tin Pan Alley. William Lundigan and Dennis Day play William Spencer and Freddie Lee respectively, successful song publishers who make hits out of such numbers as "I Got a Gal in Kalamazoo", "Deep in the Heart of Texas", "You Make Me Feel So Young", "There Will Never Be Another You", and other favorites (the rights to all of these songs were conveniently held by 20th Century-Fox).