Smoke jumpers are firefighters, trained to fight fires in places that fire engines can't reach. They travel in small planes and, (use) a parachute, jump into remote wild areas to fight fires. Smoke jumpers have to respond quickly. While a fire is still small, the pilot (drop) team members into the area as needed. Their first job may be to build a fire line to stop the fire from spreading. Water is sent down to them. Smoke jumpers must be (high) trained, very experienced and extremely fit. Their job is very dangerous.