Brian almost gets sucked in a tornado. He holds on to rocks to not get sucked in. He then watches the tornado destroy everything he made and worked for.
Brian builds a raft and pushes it into the lake. He goes into the crashed plane to find the survival kit. While searching for it underwater he sees the pilot's dead body, which is gruesome. He eventually finds the kit.
In the survival kit, Brian finds an emergency transmitter. He uses it, but he thinks that the crash broke it and tosses it to the side. The transmitter did work and sometime later a rescue plane comes and picks him up.