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Solar Storm

Episode number: 1

Overview: A solar storm throws off some whales’ senses of direction, as well as the Octonauts.

Frigatebird

Episode number: 2

Overview: Tracker and Kwazii help some fish whose food keeps getting stolen by a frigatebird.

Madagascar Tsingy

Episode number: 3

Overview: When Selva encounters an injured creature, Peso journeys to provide medical aid.

Permafrost Problem

Episode number: 4

Overview: The Octonauts help when they discover melting permafrost endangering an ecosystem.

Mudslide

Episode number: 5

Overview: When a rainstorm surges, the Octonauts contend with an oncoming mudslide.

Honeybees

Episode number: 6

Overview: The Octonauts help a colony of honeybees that are trapped in a sinking tree.

Boiling River

Episode number: 7

Overview: While in search of a boiling river, Kwazii and Paani meet some tamarin monkeys.

Kalahari Copycat

Episode number: 8

Overview: When a fire threatens a meerkat burrow, the Octonauts must put it out.

Ringed Seals

Episode number: 9

Overview: Arctic ringed seals are threatened when warming temperatures diminish their snow caves.

Alpine Twist

Episode number: 10

Overview: The Octonauts assist an alpine swift to catch up with its flock.

Elephant Swim Lesson

Episode number: 11

Overview: A baby elephant separated from its herd needs the Octonauts' help swimming to safety.

Hazardous Habitats

Episode number: 12

Overview: While collecting pictures, Dashi and Shellington get trapped in a flooding cave.

Iguazu Falls

Episode number: 13

Overview: The Octonauts must clear a logjam while protecting a family of birds.

Arctic Blizzard

Episode number: 14

Overview: When a blizzard hits, Captain Barnacles will need to use all his Arctic survival tactics.

Gobi Desert

Episode number: 15

Overview: A replanting mission is interrupted when a gazelle goes missing just as a sandstorm hits.

Caddisfly Silk

Episode number: 16

Overview: On a mission to study caddisfly silk, Bud and Paani get washed down a river.

Mudflat Mission

Episode number: 17

Overview: The Octonauts help rebuild some mudflats while reuniting a lost bird with its flock.

Lost Bottlenose Dolphins

Episode number: 18

Overview: Two dolphins get stuck in a coastal saltwater lake during low tide.

Desert Creatures

Episode number: 19

Overview: Kwazii and Periwinkle try to help a bird found in the Sonoran Desert.

Hawaiian Monk Seals

Episode number: 20

Overview: The Octonauts must repair a coral reef protecting a lagoon from surrounding sharks.

Great Pacific Clean-up

Episode number: 21

Overview: The Octonauts and Octo-Agents work together to clean up the Great Pacific Garbage Patch.

Volcano Sharks

Episode number: 22

Overview: When the underwater Kavachi volcano erupts, Ryla calls on the Octonauts to help.

Billabong Mystery

Episode number: 23

Overview: Tracker and Koshi’s bird-studying mission is upended when a mysterious egg appears.

Spider Crab Surprise

Episode number: 24

Overview: The Octonauts identify a mysterious creature that turns out to be a spider crab in need.

Mysterious Webs

Episode number: 25

Overview: When the Reef Base’s power is knocked out, Octo-Agents lead the charge to restore it.