The New Horizons spacecraft attempts to fly by a mysterious object known as Ultima Thule, believed to be a primordial building block of the solar system. Three years after taking the first spectacular photos of Pluto in 2015, New Horizons is four billion miles from Earth, trying to achieve the most distant flyby in NASA's history. If successful, it will shed light on one of the least understood regions of our solar system: the Kuiper Belt. NOVA is embedded with the New Horizons mission team, following the action in real time as they uncover the secrets of what lies beyond Pluto.

In May 2018, Kīlauea volcano erupted, obliterating neighborhoods with devastating force and uprooting thousands of local residents. It is Hawaiʻi's most destructive volcanic eruption in generations. How can one of the most beautiful places on Earth suddenly transform into a roaring inferno, sputtering molten lava and bombs of volcanic rock the size of refrigerators? On the ground in the early days of the eruption, NOVA joins scientists and residents alike on a breathtaking journey to investigate Kīlauea's recent spike in activity. Along the way, some of Hawaiʻi's biggest secrets are revealed: Why did these geologically distinctive volcanoes form in the middle of the Pacific? How did life establish itself on the remote islands? What does this tell us about the future of Hawaiʻi? And what dangers yet lurk for the inhabitants of the island paradise?