The incident itself
Travis Walton who claims that he and his friends were driving home in a truck one night and saw a bright light coming from the forest. Walton and his friends stopped their truck and Travis got out of the vehicle to investigate the strange light. Travis then noticed the the light in a matter of fact a UFO, although it is unknown if Travis noticed this at first. A large beam of light shot from the vehicle and on to him which caused him to pass out. Walton's friends watched in horror, as they were worried that the beam of light might have killed him. Travis' friends soon drove away and left him.
Walton claims that he awoke from the light and thought that he was in a hospital, until he noticed that the beings standing above him were not human and he was in no hospital. Walton the noticed that the "creatures" could be (and were most likely) Grey Aliens. The creatures began to examine Walton shortly before putting a mask over his head.
Travis Walton later woke up in the forest where he had been abducted, except he was wearing his clothes on backwards, this was obviously a sign that his clothing had been removed during his encounter with the creatures. Walton thought that he had been missing for only five hours, when in reality, he was missing for five days. Walton later reported his abduction and had his boss draw an illustration of what the creatures that abducted him looked like. His drawing showed a seemingly average depiction of a grey Alien wearing a jumpsuit-like uniform.
The Travis Walton abduction inspired a film called Fire in the Sky (released in 1993) which was based on the actual abduction of Walton, only the Aliens in the film were exaggerated and given a more frightening appearance. The Aliens also slept in suits and masks which had cables attached to the walls. The abduction probing scene was also added to the film to make it more terrifying, while Walton himself only remembered the Aliens putting a mask over his head before he woke up near a gas station. The scene where the Aliens put a mask of Walton's head was however shown in the film.
Travis Walton's abduction is also one of the better well known abductions other than the Betty and Barney Hill abduction and has been featured in some Alien documentaries such as the DVD Dreamland based on Area 51 and the five DVD set The Alien Files: UFOs Under Investigation.