Soon to be a major motion picture from Peter Farrelly, director of the Academy Award–winning Green Book—a wildly entertaining, feel-good memoir of an Irish-American New Yorker and former U.S. marine who embarked on a courageous, hare-brained scheme to deliver beer to his pals serving Vietnam in the late 1960s.

One night in 1967, twenty-six-year-old John Donohue—known as Chick—was out with friends, drinking in a New York City bar. The friends gathered there had lost loved ones in Vietnam. Now they watched as anti-war protesters turned on the troops themselves.

One neighborhood patriot came up with an inspired—some would call it insane—idea. Someone should sneak into Vietnam, track down their buddies there, give them messages of support from back home, and share a few laughs over a can of beer.

It would be the Greatest Beer Run Ever.

But who’d be crazy enough to do it?