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The crew must brave a series of severe, unprecedented thunderstorms to deploy lightning trackers across the open tundra and protect vulnerable Arctic creatures from being struck.

When a flock of sensitive elegant terns is scared away from their beach nests by sudden, unnatural noises, the Octonauts must gently find them and guide them safely back to their eggs before it rains.

The Octonauts travel to the American prairie to rescue a community of prairie dogs before a massive storm floods their underground town.

The Octonauts must find a new habitat for a giant panda whose native bamboo forest has run out of food.

The Octonauts must navigate and clean up a massive, slimy outbreak that is trapping marine life and threatening the coral reef ecosystem.

The Octonauts must help a unique Sword-billed Hummingbird that has strayed far from its rainforest home and is struggling to find food in an unfamiliar coastal environment.

Captain Barnacles and his crew must rescue a territorial Southern Cassowary after a powerful storm strands it far from its rainforest home.

Captain Barnacles and the Octonauts travel to the freezing Arctic to rescue a lost and helpless Baikal seal pup.

Kit the Fennec Fox is an energetic desert expert who joins the Octonauts to help them navigate harsh environments and rescue creatures in need.

The Octonauts must find a way to protect a brood of emerging cicadas from a storm while managing the overwhelming noise they make.

Protecting a swarm of tiny baby red crabs as they migrate proves difficult.

Captain Barnacles and his crew must navigate a treacherous network of underwater caves to rescue a group of trapped sea creatures before their air runs out.

Captain Barnacles and his crew help a family of migrating hoopoes find a safe place to rest and feed after a storm throws them off course.

The Octonauts travel to China's snowy Chinling Mountains to study and protect a troop of unique, cold-resistant golden snub-nosed monkeys.

The Octonauts travel to the Amazon rainforest to help a group of colorful scarlet macaws find a new home after their nesting trees are damaged.

As a large hurricane approaches a longleaf pine forest in Florida, the Octonauts embark on a land mission using their Terra 11 vessel to safely locate and evacuate vulnerable local wildlife before the storm hits.

The crew must navigate a sub-zero, ice-covered wilderness to rescue Professor Natquik and save a unique habitat of resilient arctic creatures.

The Octonauts must navigate a chaotic situation when a troop of playful, banana-loving monkeys accidentally disrupts their underwater mission.

The Octonauts must embark on a high-stakes search when a tiny, critical engineering creature goes missing inside the Octopod.

The Octonauts travel to Siberia's boreal forest to investigate why the local trees are leaning and the resident animals are getting sick.

The Octonauts must rescue a group of tiny Pumpkin Toadlets after a sudden mudslide puts their rainforest home in danger.

The Octonauts must find a way to rescue a lost river otter pup and reunite him with his family before he gets swept away by a rushing river.

The Octonauts navigate the unique dangers of a localized atmospheric phenomenon in South America near the Katumbo River and Lake Maraco, where they must study and manage the impact of thousands of nightly lightning strikes.

The Octonauts must find a way to safely guide a group of rare spiders across the ocean after a powerful storm blows them off course.