rescue team. >> two teams are called. the ground rescue volunteers and at the kearn county sheriff's office, the air support team of deputies mcadoo and nelson. >> we got our gear together that we needed to conduct the hoist rescue, pulled the helicopter out, took off and started heading out there. >> as we were going out there, the first ground units arrived on scene and actually confirmed that they had six people stuck in three different trees. >> when they reached the scene, mcadoo and nelson are surprised at how swollen the river is. >> stuff that's usually dry land was underwater. >> it was shocking to see the peril that these people were in. >> the ground team rescues two people using boats, but they can't reach mike or ed, marooned in the trees. >> that's when they asked for us to go ahead and conduct a hoist rescue. >> the rafters have been in the water for more than an hour, and are growing dangerously chilled. how much longer can they hold on?