The 1969 San Francisco nuclear bomb plot was a planned Soviet nuclear attack on San Francisco, California which occurred duirng the Cold War. The attacks would have been carried out by KGB agents driving "hippie vans" across the city. Supervised by KGB agent Ivan Oranchov, the plot would target four sites around San Francisco and Oranchov believed that the nuclear attacks on San Francisco would assist in the initiation of a workers' revolution to overthrow the corporation-dominated US government.
The death of KGB puppet Coyote Bongwater led to Agent Oranchov and the last of his agents retreating to their base on Alcatraz island, where they intended to destroy the dossier containing the locations of the bombs. However, the US government dealt with the plot using a classified process, as the vans used for the attack were ultimately driven into the bay and therefore eliminated as a threat. The details of the plot, and the US government's thwarting of it, were highly classified due to potential extraterrestrial involvement, as there were reports that an alien had killed the KGB agents on the island and stolen the dossier, that a UFO had picked up the vans and thrown them into the bay, and that the same UFO had used an incinerator ray to destroy the KGB base on Alcatraz before flying off to London to thwart another KGB threat.