As the world progresses into the industrial age, a professor studying the "nature of pure matter" is spirited away by a would-be dictator and connived into building a super-bomb, as a young reporter and a girl rescued from the sea attempt to warn him of their mutual kidnapper's intentions to dominate the world with a new and more-deadly-yet weapon.
While old Oliva tells a group of children about his life as a sailor and how he met Diana and her cat with sunglasses, a strange circus arrives in town.
Energetic Dr. Alice Váňová becomes the pit doctor at Mír Mine and spearheads a silicosis prevention study requiring miners to drink milk regularly. The miners, led by a tight-knit group, stubbornly refuse public participation. Determined union chair Janeček resorts to psychological tactics and pressure campaigns to force their compliance, turning a health initiative into a tense battle of wills.
