An original documentary about a fallen U.S. soldier debuting Sunday night on HLN has a connection to the Apex-based security and defense contractor TigerSwan, Inc.

"108 Hours: A Father's Journey to Iraq" tells the story of Robert Stokely's trip to Iraq to honor his fallen son, U.S. Army Sgt. Mike Stokely, a member of the Georgia National Guard who was killed in action. Robert Stokely, from Sharpsburg, Ga., traveled with TigerSwan security personnel to a dangerous region of Iraq to place a marker at the site where his son was killed. The excursion was coordinated by Soldiers' Angels, a volunteer, non-profit charity. TigerSwan's services were donated.

The News & Observer detailed Robert Stokely's journey back in March.

The documentary airs Sunday night at 8 p.m. on HLN (which you may know as CNN's Headline News). You can watch a trailer for the film below.