Le 10 mai 1978, Jan Wolski traverse la forêt près d'Emilcin en Pologne, lorsqu'il aperçoit deux personnages curieux, qui s'invitent dans son chariot. Les extraterrestres vont l'amener dans leur vaisseau ou il est examiné avant de repartir chez lui. On May 10, 1978, Jan Wolski, a 71-year old farmer, was passing through a forest near Emilcin, in Poland, in his horse drawn cart, when he noticed two strange individuals. They walked alongside the horse and cart for a while then jumped onboard, gesturing to Wolski to carry on. They showed him their ship where they examined him.