Ukrainian soldiers were walking back to their positions, but they didn't know that the russians took them shortly before. They walk straight into a Russian soldier who shoots the first Ukrainian at point blank, then a second Ukrainian militant gets confused and starts helping the Russian soldier to fight against the rest of Ukrainian soldiers and even throws a grenade at them, at the end the Ukrainian brigade retreats under heavy fire and the single Russian man manages to capture two Ukrainians, including the one who was helping him.