A doctor testifying to an advisory committe said of this experiment "84 percent of the men that were exposed at Johnston Island to that detonation -- it wasn't a detonation -- to that abort, 84 percent of them have cancers or are dead. Their children are all affected."

The Johnston Island area segment of Operation Dominic. Much of the film was devoted to the failures that occurred in the high-altitude program. In one test, a rocket was destroyed because it was believed to be off-course, but post flight data revealed that it was on the correct trajectory. Another rocket blew up on the launch pad because of a sticking fuel valve. This caused the high explosives in the weapon to detonate, resulting in the destruction and contamination of the launch pad and surrounding area. In another instance, a rocket had flight irregularities stemming from the wrong configuration of a flight plan. The nuclear device detonated directly over Johnston Island, instead of 26 miles away as planned.