In September 1957, farm owner Hélio Penteado and two workers were reportedly repairing a wire fence near Campinas, São Paulo, when one man fell and appeared unable to move. Looking toward the nearby property, the others saw an unusual disc-shaped object roughly fifty metres away. The exact day is not established in the accounts examined.
The craft was described as having domes above and below, portholes around its body and three supports. Three approximately human-sized figures in close-fitting, iridescent clothing were reportedly outside it. Their movement was compared to gliding on skis rather than ordinary walking. They seemed to collect material and place it in a large box. After an interval usually given as about twenty minutes, they returned to the object and it departed. The story links the worker's temporary immobility with the encounter, but that causal connection was not medically established.
Brazilian investigator Cataldo Bove of SBEDV collected the report. Its publication trail includes Diário do Povo in August 1959 and an SBEDV bulletin in March 1960, so the surviving public documentation followed the stated event by approximately two years. Later Brazilian histories supply further narrative detail, while international catalogues retain a shorter summary. The case should therefore be read as a retrospectively documented farm encounter, with the sampling activity, vehicle characteristics and physiological effect remaining witness claims.
Film uses October 1957 versus Atlas September, with no established day. Public documentation followed about two years later. Film's river water, metallic fragments, physiological effects and regional observations remain expanded retelling claims, not independently validated samples or causal findings.