This morning around 08:30 Engine 42 was dispatched into the Holiday Park section of Plum for the report of smoke inside a commercial business. C-236 arrived on scene and reported smoke inside 4 storefronts of a commercial strip. E-42 was ordered to stage on the A side and have crews begin to search for a source of the smoke. E-42B forced entry into a restaurant and found a fire in the kitchen area. The fire appeared to have mostly self extinguished and crews utilized two PWCs to fully extinguish the area. While returning from this incident, Truck 4 was requested into Churchill for a report of smoke inside a very large, mostly vacant industrial complex. Initial arriving units were able to find and isolate the source of the smoke and Truck 4 was cancelled as it arrived on scene.