Episode "Collapse" 3641_collapse-07_04700300 A forklift dumps slabs of concrete over the collapsed porch roof. Breaching concrete is just one of the challenges facing urban search and rescue teams when trying to locate victims in a building collapse. Collapse 12 Disaster City structures are designed to look and feel like the aftermath of a natural or man-made disaster. The wood rubble pile is modeled after destruction left in the wake of a tornado or hurricane. Collapse 05 A demolition crane smashes a car before it is placed up against the Morgantown home. Strong winds from hurricanes and tornadoes move cars into houses and buildings. 3641_collapse-11_04700300 Blade, a search and rescue canine, barks to alert his handler after he detects a scent of life within a pile of concrete. Collapse 01 Applied Research Associates (ARA) engineers, Tim Samaras and Andy Poulter, test the LRV in Disaster City. Collapse 03 The LRV, or Lightweight Reconnaissance Vehicle, is a four-wheel drive, remote-controlled robot. Equipped with 2 separate cameras, the LRV provides a real-time image to the operator through a wireless controller. Collapse 06 Andy Poulter, a robotics engineer from Applied Research Associates, invented the LRV in order to help keep emergency responders out of harm's way while searching for victims in a building collapse. Collapse 08 Canine handlers watch their dog search on top a concrete rubble pile in Disaster City, located on the Texas A&M campus. Victims lay in tunnels beneath the pile until the dogs can find them. Collapse 10 Denise Corliss, an urban search and rescue canine specialist, trains her dog, Aidain, to search for victims in a massive wood pile in Disaster City. Collapse 09 West Virginia Task Force 1 Urban Search and Rescue responders attempt to find a victim trapped in a collapsed two-story home. Collapse 13 Aidain, a search and rescue dog, is taught to sniff for signs of life in a massive wood pile in Disaster City. 3641_collapse-02_04700300 Aidain, a search and rescue canine, is rewarded with a toy after finding a live victim trapped within the wood pile. 3641_collapse-04_04700300 A demolition claw takes down the porch roof of a two-story home in Morgantown, West Virginia. The home is being used for an urban search and rescue training exercise by West Virginia Task Force 1.