Remek Wróbel is a mailman and an enthusiastic member of an amateur football team. He’s pushing on forty, living the life of a bachelor. One day, everything changes – his neat, tidy life is turned upside down by the appearance of Grandpa, whom he hadn’t met before, and his new chatty neighbour, Marzenka.
Underground people who exhale toxic gas appear in Tokyo's S-Ward, which is dealing with construction noise from urban development projects. Everyone panic, but it turns out that five middle-aged guys are unaffected by the poisonous gas. They undergo vigorous training to fight the underworld people, but are they going to be able to save the world…?
A love triangle among three adults experiencing middle-age malaise leads to one of them ending up dead.
