Early this afternoon, Kingwood was requested by Company 3 for an Engine to assist with a commercial vehicle fire around the 22.3 mile marker on I-68. Engine 56 responded with two. Once on scene, Command 3 requested 56's crew to assist with the attack on the fire, as well as assisting with gaining access into the trailer. Our K12 saw was deployed to cut holes in the side of the box trailer, and hand tools were used to try to pull contents out to get nozzles into the trailer. A lot of work was put in by the initial few departments on scene, including Company 3, Company 1 Albright, as well as Company 110 Freindsville. However, given that the trailer was full of paper contents, and lack of water supply due to being on the interstate, the 90-95°+ temperatures easily overheating the manpower available, multiple agencies were requested by Command 3 to assist with water shuttle operations, aerial operations, mobile command, and man power. Due to the number of resources needed, all eastbound and west bound lanes were shut down. Preston County help arrived from Terra Alta, Masontown and Aurora, as well as a member of Tunnelton staying in Bruceton's station for coverage; Garrett County Maryland had several more agencies respond, including Deep Creek with their Tower 34, Grantsville, Bittinger, and Eastern Garrett with tankers; Pennsylvania departments included Markleysburg and Farmington. A Mobile Command Unit was sent by MECCA, EMS on scene to rehab the firefighters included Bruceton, KAMP, and Northern Garrett County Rescue Squad. WV State Police, as well as the WV DOH assisted with shutting the interstate down, ensuring a safe scene. With all the given help, as well as to all those who donated water, ice, food, etc. to all the workers and volunteers, the fire was finally called under control after several hours. During overhaul, crews were assisted by heavy machinery to clean up, and would continue to knock out hot spots and cool the contents well into the evening. After about 6 hours, Company 5 was released by Company 3 Command. Companies 1 and 3 remained on scene for further into the evening, finally opening up the interstate in the late evening.