Just prior to 01:00, Truck 29 was alerted as the second due truck to the area of Ritchie Rd and Walker Mill Rd in Co. 37’s area. Engine 37 arrived in the 1200 BLK of Ritchie Rd with fire throughout a commercial building in the and quickly sounded the 2nd alarm. Truck 29 operated on the Charlie side with Engine 5, making entry into the building and setting up the ladder pipe.