Company 5 was dispatched to assist company 44 and company 21 with a brush fire out on the Caledonia pike in Goshen township, Dispatch indicated that it was about an acre and spreading endangering camps.  When units arrived they found a field like area burning away from the woods line.  Brush 44, Attack 21 and Brush 5 crews were able to contain the fire and continued mop-up for roughly 35 minutes.   Brush 5 Engine 5 and Squad 5 responded on the call with 11 members present.