The showrunner told Collider that the series would take its inspiration from Thomas Malory's Le Morte d'Arthur.
"We have a grand plan, which...will allow for multiple seasons," he explained. "We're starting right from the birth of Arthur, and we'll go through and try to tell the truth that lies behind the myth."
Chibnall confirmed that the show would present a realistic take on the Arthurian legends.
"These are the events that could have contributed to these myths, because myths grow, change and shift in the re-telling over time," he said. "What was interesting to me...was excavating what it might be like to have lived then and how these stories might have come about."
However, he admitted that characters such as Merlin (Joseph Fiennes) would still experiment with magical forces.
"The magic is very much a part of our storytelling," he claimed. "What powers Merlin has, how much he can control them [and] how that plays into his character, is really [an important] part of the story."
Camelot is expected to air on Starz in early 2011.