Images of Bode's hometown "Edgewater" are of the actual town of Rio Dell, CA 200 miles north of Max Thieriot's hometown of Sebastopol, CA which came close to being destroyed by the tragic overnight massively destructive Tubbs wildfire during a windstorm in October 2017. The unprecedented Tubbs fire's progression was halted only by the heroic efforts of local mutual aid municipal and CalFire firefighters.
Actors were trained by Fire Protection personnel from Melrose Air Force Range (MAFR) in Melrose, New Mexico.
A firebreak can be natural or manmade, it's basically a clearing of vegetation to the mineral soil, so that the fire can not pass through the area; taking out the fuel supply
Billy Burke had previously played a firefighter in Ladder 49 (2004) and on 9-1-1: Lone Star (2020). Diane Farr previously played a firefighter on Rescue Me (2004).