Two days after the “Bloody Sunday” march in 1965, when African-American protesters in Selma, Ala., were battered by police on national television, the Rev. Martin Luther King Jr. led another march across the same bridge.

Among those at that second march was Henry Hampton, a 24-year-old official with the Unitarian Universalist Church. Hampton was proud to be there — and then, like many in the march, was baffled when King and the march’s leaders halted, knelt in prayer, and turned around.

The turnaround was part of a political deal to avoid further bloodshed. But at the time, Hampton thought: This is going to make a great story to tell on TV.

And it was.

For all its import, the civil rights movement lacked a chronicler before Hampton set out to make what would become the 1987 miniseries “Eyes on the Prize.”

In his book “True South,” Jon Else, a former civil rights activist and series producer on “Eyes on the Prize,” tells Hampton’s story, and his own, in recounting the making of the landmark PBS series. In the process, he also relates the movement’s journey and the challenges in telling America’s central narrative.

As an industrial filmmaker in the late 1960s and 1970s, Hampton formed his own production company, Blackside. In the late 1970s, Blackside worked on a documentary on the civil rights movement for ABC; that project imploded, but it formed the roots of “Eyes on the Prize.” Combining his own remembrances with extensive interviews, Else crafts a compelling, sometimes cautionary tale of what it takes to take on such a mammoth storytelling task.

Else is an Oscar-nominated and Emmy-winning documentary filmmaker. Before that, he was a college student who, in 1964, went to Mississippi to help African-Americans register to vote. Else also is white — a fact he neither dwells on nor hides from readers, although it sits over his narrative like a prism.

Else weaves Hampton’s story, and his own, into the narrative of the making of “Eyes on the Prize” in ways that give that tale depth and insight. Else’s retelling of his time as a young activist helps explain why he stuck with Hampton’s project amid years of frustration. Hampton’s biography — from young striver overcoming polio to award-winning filmmaker to a victim of cancer, which finally took his life in 1998 at age 58 — reveals how he managed to power his way through all the difficulties.

Although Hampton’s production company faded with his death, Else notes “the Blackside diaspora,” the hundreds of filmmakers who got their start telling important stories working for the company, is Hampton’s “most lasting legacy.”

NONFICTION

“True South: Henry Hampton and ‘Eyes on the Prize,’ the Landmark Television Series That Reframed the Civil Rights Movement”

by Jon Else

Viking, 404 pages, $30