The Whirlybirds are hired to find a missing uranium prospector. The search area is rugged and inhospitable, and the task is even harder when two claim jumpers try to stop them.
A sickly circus gorilla named Congo escapes. Once on the loose, he terrorizes the local residents. Chuck and P.T. are hired to track the beast down and capture him.
A younger brother, with revenge in his heart, climbs on a building and keeps police at bay with a rifle. P.T. takes a reporter up to the brother, thinking the reporter has good intentions. Unknown to P.T. the sleazy reporter has ulterior motives.
Whirlybirds ground crew are trying to contact P.T. and Chuck to warn them of imminent danger of a thunder storm. As this is going on reporter Bronson arrives to do a news story on the Whirlybirds business. Chuck and P.T. at this moment are delivering a portable iron lung respirator to a secluded mountain home were a young boy named Tommy is in great need of the respirator to survive. Dangerous winds and lightning, fear of loosing the precious life saving cargo due to the holding straps coming loose, plus a leak in the helicopters gas tank only make things worst for the pilots. To make matters even worst the storm breaks the power line leading to the mountain home and it is up to the Whirlybirds to help a local lineman reconnect the live electric line in time to save young Tommy.
The Whirlybirds are hired for a hunting trip up in the mountains. But once they get there they discover that there's a plot to kill one of the hunters.
Billy and Danny fall into a mine shaft at a ghost town. Billy's little brother, Ricky, goes for help. He is spotted by Chuck and P. T. in the whirlybird. They take him to a hospital and then return to search for the other boys.
Three escape convicts, one of whom has flying experience, steal the "Whirleybirds" plane and rough up their secretary. The warden arrives and they co-ordinate a search for the missing plane which has little gas. When the convicts return to fuel the plane, the warden later arrives to wait for new developments and is kidnapped by the convicts who fly off again. The search continues...
Virgil Hook and his "lynch mob" want to take the law into their own hands and evict a suspected killer and his wife from their home. A reporter has important information that may change things . Chuck and P.T. help the reporter and police out.
A man is obsessed on killing a mountain lion that took his hand during an earlier hunt. He hires the Whirlybirds to take him back up to the mountain were the incident happened so he can hunt the animal down and kill it. Chuck and P.T. feel the hunter is being careless.
The Whirlybirds are hired by a company to deliver a newly developed solid fuel bomb to its testing area. When the bomb fails to explode they are tasked to go back to the location with the only person that can dismantle it.
Chuck and P.T. fly a "businessman" to Las Vegas. He suddenly decides he wants to return home early in the morning. Hot on his trail are some desperate gamblers, led by a woman, who kill the passenger and take P.T. hostage as they search for $150,000 taken from them. Chuck risks his life as he leads the police in an attempt to capture the gamblers and rescue P.T,
Chuck and P.T. help their secretary search for her missing nephew who was last seen playing a game of "Hide and Seek". Unknown to them he was hiding in the trunk of a old rusted car that is now in route to the junkyard to be crushed.
The Whirlybirds are working for a motion picture company. While on the filming site, P.T. happens to see a man rescue the films star from danger and photographs this event. The man doesn't want the photos with him shown to the public. The photos somehow get in the papers and the man is very upset. He now wants to get revenge on P.T.
A wealthy explorer is conned by a former acquaintance into believing there has been a discovery of an ancient civilization. He hires the Whirlybirds to take them to the location not realizing that he is being set up to be robbed.
The Whirlybirds have been teaching a brother-sister act to fly so they can use a helicopter in their trapeze act. After his student returns from a solo flight Chuck finds evidence that connects him to a $200,000 armored truck robbery.
An entire family mysteriously disappears from a travel trailer parked out in the desert. Chuck and P.J. join with the sheriff's department in the search.
When a bag of payroll money being delivered is several thousand dollars short, the Whirlybirds are the first suspects. Evidence they find leads the two pilots and their client to the jobsite.
P.T. and Chuck try help their client persuade a 105 year old man into selling his land to a mining company. However, there are two land speculators who also want the land and will do anything to get it, including murder.
The Whirlybirds rescue a motorist that has gone off a mountain road and fly him to a hospital, only to find out that his wife is having a medical emergency back at their cabin and a doctor is needed there quickly.
