Flight 502 takes off from New York City to London. At the airport, a fake bomb threat leads to Head of Security Robert Davenport (George Maharis) finding a letter he would not have received until the next morning. The letter explains a series of murders will take place on Flight 502 before it lands. He and his team go over the backgrounds of all the passengers to find possible suspects. In the air, Captain Larkin (Robert Stack), off duty Police Officer Daniel Myerson (Hugh O'Brian), and flight attendant Karen White (Farrah Fawcett-Majors) look for suspicious passengers. Relationships develop on board between elderly singles Charlie Parkins (Walter Pidgeon) and Ida Goldman (Molly Picon), rock star Jack Marshall (Sonny Bono) and Dorothy Saunders (Rosemarie Stack), and mystery writer Mona Briarly (Polly Bergen) and suave passenger Paul Barons (Fernando Lamas). Briarly suspects Barons is actually a criminal who got away with stealing seven million dollars from a bank, but Barons denies it.
Coyote Bus Lines' scientists and designers work feverishly to complete Cyclops, a state-of-the-art jumbo bus, enabling man to achieve a new milestone in bussing: non-stop service between New York City and Denver. Almost immediately after the bus's engine is equipped with nuclear fuel, a bomb goes off, critically injuring Professor Baxter, the scientist in charge of the project. Cyclops itself is undamaged, but Coyote Lines has lost both its driver and co-driver.
The film is set on Interstate 5 in California on the day of July 4, 24 hours before the summer vacation will officially commence. From the beginning, California Highway Patrol sergeant Sam Marcum (Robert Conrad) announces in a voice-over that a 39 car smash-up will be the cause of 62 injured people and fourteen deaths. A selection of the people involved are followed up to 48 hours preceding the accident. Other than Sam, who is chasing the murderer of his colleague on the highway, the film focuses on the elderly couple Al and June Pearson (Buddy Ebsen and Harriet Nelson), who are setting out to a beach resort to forget the fact that June is suffering from a terminal disease. Meanwhile, a woman named Erica (Vera Miles) is troubled by a gang of bikers including rebellious Burnsey (Sue Lyon), when she is rescued by young Dale (David Groh). In other sub-plots, Lee Bassett (Scott Jacoby) becomes a murder suspect when he is forced to pick up a young couple on the run, Penny and Pete (Bonnie Ebsen and George O'Hanlon, Jr.). Laureen (Donna Mills), a nurse with feelings for Sam, struggles with doubts of marrying him. Barbara Hutton (Sian Barbara Allen), a young mother, is panicked when she finds her husband Jimmy (Tommy Lee Jones), an officer, shot. All these stories come together when a massive car crash changes their lives for good.
Bill Hart and his son, Nelson drive his daughter Julia to the airport. Bill contacts Dr. Divya who informs Bill a team of scientists he works with has left Iceland. Divya is able to tell Bill an entire range of volcanoes has erupted and a 200-mile long ice shelf is breaking apart before he is killed by the volcanic eruptions. While Bill is distracted, Julia heads into the airport.
Rampage: While out for a jog, Chris is mugged and knocked out by three thugs. When the now disfigured Chris awakens, he (apparently suffering from brain damage incurred from being beaten) embarks on a killing spree, butchering everyone he comes across with whatever objects he can get his hands on. When he finally returns home, Chris discovers the three robbers from earlier have broken in, so he shoots two of them, tortures the third to death, and commits suicide by ripping his own mutilated face off.
Russian general Marenkov (Robert Shaw) decides to defect to the West, and CIA agent Harry Wargrave (Lee Marvin) leads the team that is to get him out. Wargrave decides that Marenkov should travel across Europe by train, on the fictional "Avalanche Express". The idea is to lure the Russians into attacking the train, and thus discover who their secret agents in Europe are. Consequently, during the train journey they must survive both a terrorist attack and an avalanche, all planned by Russian spy-catcher Nikolai Bunin (Maximilian Schell).
Un automne, une tempête solaire détruit les satellites du système de l'ACAT, un nouveau programme de lutte contre le terrorisme aérien. Deux avions qui vont à Detroit, l'Air Force One contenant le président et un DC-9 du vol n 23 d'« Americana Bleu » avec des passagers civils, sont sur une même identique trajectoire de collision directe.
According to the Asylum's website, "When the President learns that domestic terrorists have skyjacked the passenger jet her brother is flying, she must choose between family and the safety of the people in the cities below."
The story follows several citizens and those they encounter after a nuclear attack on Lawrence, Kansas and Kansas City, Missouri. The narrative structure of the film is presented as a before and after scenario with the first half introducing the various characters and their stories. The middle portion of the film shows the nuclear disaster itself, and the latter half details the effects of the fallout on the characters.
The movie begins with a small tremor beginning in the hills outside of Los Angeles near a United States Geological Survey (USGS) research post which cuts to a scene of a teenage girl on a date with her boyfriend at the Earthquake Ride at Universal Studios Hollywood. The girl is later revealed to be Heather, daughter of Clare Winslow (Joanna Kerns), who is a seismologist with the U.S.G.S.
Engineer Cal Miller's unauthorized attempt to close off the dangerously unstable Madison Bridge is foiled by the police pursuit of a robbery suspect. The chase ends in a multi-car accident in the middle of the bridge, which begins falling apart during the confusion. Miller organizes a rescue operation for the handful of bystanders who find themselves stranded with the armed suspect and a wounded policeman on a short stretch of crumbling pavement high atop a single collapsing pylon.
David Koch (Jeff Fahey), a climatologist employed by Inter Sci, proposes a theory that the last ice age was triggered by Earth's polar shift in a single day. When unusually cold weather strikes Miami and the birds start to return from the south a few months earlier, he is sent to Antarctica to find out what is happening.
A volcanologist and his graduate students believe that all of the volcanoes in the world are going to erupt and kill every living thing on the planet. They try to convince the government that their theory is true while also trying to figure out how to stop it.