Transcript for Crews Scour Remote Forest in Search for Missing California Firefighter
But right now we begin with that massive search for the California firefighter who went missing five days ago during a camping trip. Helicopters and crews are scouring remote forests looking for him and David Wright has the story. Reporter: A flash-out search as rescuers scour this dusty corner of California for missing firefighter, father and husband, Mike herdman. Day one they began at a place called doe flat and you can see the yellow path they took up here. Reporter: Herdman, an avid outdoorsman was on a weekend camping trip with Tyler byers. Byers told authorities he last saw his friend chasing after his dog duke who had run into a creek, barefoot only wearing a t-shirt and shorts and simply disappeared according to byers. We found his backpack and footprints in the direction he was last seen going so we, you know, we're starting from there and working our way out methodically rock by rock, bush by bush. Reporter: The campsite where he was last spotted is two days' hike into the back country here, an area almost twice the size of the grand canyon. It's remote, inaccessible terrain that will make him that much harder to find, that much harder to report him missing. It took the friend all weekend to hike out and call for help. Is there any hint at all, any indication at all of foul play? No, no, not at this time. Reporter: Herdman who has a 6-year-old daughter had planned to be home for father's day. Instead, his wife and friends including fellow firefighters have spent two agonizing days at the trailhead hoping for good news. You know, as a firefighter he is usually doing the rescuing. Now he is badly in need of rescuing himself and authorities are worried that the mild weather that we've had over the past couple of days may take a turn for the worse today, George. Oh E. Gosh, the clock is ticking. Thanks. Thinking of him and his family.
This transcript has been automatically generated and may not be 100% accurate.