E10
10. Lost Endeavor Island
Findings include legendary shipwreck, military structures and stone disks
Latest episode
S2 E3 · Island of the Emperor's Tomb
Mysterious Islands is a mystery and reality TV series that premiered on National Geographic on October 24, 2024. It has 2 seasons and 10 episodes so far and is still airing new episodes. The latest episode, Season 2 Episode 3 "Island of the Emperor's Tomb", aired on August 17, 2026.
Mysterious Islands takes viewers on an unforgettable adventure to explore the most enigmatic islands on the planet. Weaving together CGI, archival footage, and expert testimony—and with up to four incredible stories per one-hour episode—it's a wild ride as these incredible outposts gradually reveal their secrets
Last updated
10 episodes · 2 seasons
2024 · 10 episodes · Last episode: 1 year ago
E10
Findings include legendary shipwreck, military structures and stone disks
E9
Abandoned structures are found; Havana Syndrome; a long-lost island
E8
Findings include a volcanic island, burials, a computer, orcas vs. sharks
E7
Terraces shrouded in mystery; hundreds of human remains; a blood-red beach.
E6
Skeletal remains, a spider discovery, and thousands of dead seals.
E5
Uncover the ruins of an unknown civilization and a long-lost temple.
E4
Investigations into mass graves, rumors of mysterious flying objects, dinosaur remains, and strange ritual artifacts
E3
Explore a volcanic island, a decaying mansion, and a Cold War base
E2
Discover headless skeletons, undersea craters, and an island full of dolls
E1
Mysterious structures and abandoned islands reveal dark histories
2026 · 3 episodes · Last episode: 2 months ago
Cut off from the mainland, islands are worlds unto themselves — isolated, enigmatic and often hiding extraordinary secrets. “Mysterious Islands” returns for a new season, traveling to remote locations to uncover stories shaped by time and isolation. On Greece’s Keros, hundreds of deliberately shattered Bronze Age figurines are uncovered, hinting at lost rituals. On Ethiopia’s Daga Island, mummified medieval emperors reveal a hidden chapter of history. In Argentina, a perfectly circular floating island rotates within a circular lake, defying easy explanation. And in Hungary, skeletal remains beneath a monastery reignite a centuries-old mystery. Using CGI, archival material and expert analysis, “Mysterious Islands” investigates the truth behind these enduring enigmas.
Mysterious Islands Season 2 release dates →In Budapest, beneath the ruins of a medieval monastery on Margaret Island, archaeologists uncover the victim of a medieval killing — his identity lost, and his death shrouded in secrecy — but what led to this violent end? In Italy’s Venetian Lagoon, the shifting sandbar Bacan has suddenly stabilized, defying its natural cycle and raising new questions about the forces reshaping it. On Denmark’s Als, a buried boat surrounded by weapons hints at a forgotten conflict. Was it lost in battle or offered in ritual? And on Ethiopia’s Daga Island, mummified emperors lie hidden within a monastery, their presence tied to power, faith and enduring legend.
Off Ireland’s coast, maps marked the phantom island Hy-Brasil for centuries, but was it lost or an illusion? In Argentina, a perfectly circular island called “The Eye” rotates within a ring-shaped lake. In Madagascar, the vast cliffside complex of Teniky hints at a lost past. On Pantelleria, hidden Roman coins capture a moment frozen in time
On a Polish island, a wood-carved face may have ancient spiritual significance. In the Bahamas, discoveries from a sunken treasure ship reveal the cause of the disaster. At San Teodoro Cave, evidence shows humans reached a nearby island later than expected, and North Sentinel Island remains isolated and fiercely protected from the modern world.
A date for the next episode of Mysterious Islands hasn't been announced yet. Follow Mysterious Islands in the Streambay app and you'll be notified as soon as a new episode airs.
The most recent episode of Mysterious Islands, Season 2 Episode 3 "Island of the Emperor's Tomb", aired on August 17, 2026.
Mysterious Islands has 2 seasons with 10 episodes in total.
Mysterious Islands first aired on National Geographic on October 24, 2024.
Download the Streambay app, follow Mysterious Islands, and you'll get a push notification the moment each new episode is released.
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