Los Angeles, Oct. 3 -- Former One Direction members Louis Tomlinson and Zayn Malik are reuniting for a three-part documentary series chronicling their travels across the United States, offering an intimate and unvarnished glimpse into the lives of two of pop music's most celebrated yet enigmatic figures.

The series will be directed by Nicola Marsh, whose previous projects include the Demi Lovato documentary "Child Star", "Song Exploder" and "Stay on Board: The Leo Baker Story". It will follow Tomlinson and Malik as they traverse the United States, sharing experiences, reconnecting and reflecting on their personal journeys.

They are also expected to discuss the tragic death of fellow One Direction band member Liam Payne. "The series is a r...