An elite blademaker uses his skills to re-invent tools and weapons used to save lives. To help victims of car crashes, Mad Dog tries to create a lighter, more effective version of the "Jaws of Life" but the build pushes his skills to their limits.

An Alaskan Bush pilot needs a shotgun that can withstand a plane crash and a bear attack. Mad Dog forges an indestructible axe to help a firefighter take on 1,000 degree blazes.

To take on the brutal conditions on Mars, a NASA astronaut asks Mad Dog to design a tool that works with his spacesuit. A US Marshal needs a battering ram that can take doors quickly and withstand a million volts of electricity.

An elite American sniper needs a long-range rifle that can make a shot from two miles away. Mad Dog creates a takedown spear with a razor-sharp blade and shotgun rounds to protect a cowboy and his herd from wolf attacks.

One wrong move could trigger an explosion when the team helps re-invent an Explosive Ordnance Disposal kit. Mad Dog needs to create a blade that can help deep sea rescue 1,000 feet below the surface.

Search and Rescue gets a Mad Dog re-invention as the team takes on two life-saving builds. They re-configure a gyro plane to search day or night for people lost in the wilderness. A first responder needs a new rescue kit for victims in the mountains.