Engine 33 and Engine 35 were dispatched to an explosion and arrived on scene to find a fully involved mobile home structure. Engine 33 deployed two 1.75 handlines and started extinguishing fire from exterior due to how advanced the fire was and floor structure had been compromised. Crews did a visual search from the exterior once the fire was under control to confirm that nobody was inside. Overhaul was performed to extinguish hotspots and enable investigation by fire marshall. Once investigation was complete fire marshall instructed crews to make sure all fire was out and rope off area and clear the scene.