Season 4
25 episodes · Feb 19, 2024
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S4E1Solar Storm
Feb 19, 202411mA solar storm throws off some whales’ senses of direction, as well as the Octonauts.
S4E2Frigatebird
Feb 19, 202411mTracker and Kwazii help some fish whose food keeps getting stolen by a frigatebird.
S4E3Madagascar Tsingy
Feb 19, 202411mWhen Selva encounters an injured creature, Peso journeys to provide medical aid.
S4E4Permafrost Problem
Feb 19, 202411mThe Octonauts help when they discover melting permafrost endangering an ecosystem.
S4E5Mudslide
Feb 19, 202411mWhen a rainstorm surges, the Octonauts contend with an oncoming mudslide.
S4E6Honeybees
Feb 19, 202411mThe Octonauts help a colony of honeybees that are trapped in a sinking tree.
S4E7Boiling River
Feb 19, 202411mWhile in search of a boiling river, Kwazii and Paani meet some tamarin monkeys.
S4E8Kalahari Copycat
Feb 19, 202411mWhen a fire threatens a meerkat burrow, the Octonauts must put it out.
S4E9Ringed Seals
Feb 19, 202411mArctic ringed seals are threatened when warming temperatures diminish their snow caves.
S4E10Alpine Swift
Feb 19, 202411mThe Octonauts assist an alpine swift to catch up with its flock.
S4E11Elephant Swim Lesson
Feb 19, 202411mA baby elephant separated from its herd needs the Octonauts' help swimming to safety.
S4E12Hazardous Habitats
Feb 19, 202411mWhile collecting pictures, Dashi and Shellington get trapped in a flooding cave.
S4E13Iguazu Falls
Feb 19, 202411mThe Octonauts must clear a logjam while protecting a family of birds.
S4E14Arctic Blizzard
Feb 19, 202411mWhen a blizzard hits, Captain Barnacles will need to use all his Arctic survival tactics.
S4E15Gobi Desert
Feb 19, 202411mA replanting mission is interrupted when a gazelle goes missing just as a sandstorm hits.
S4E16Caddisfly Silk
Feb 19, 202411mOn a mission to study caddisfly silk, Bud and Paani get washed down a river.
S4E17Mudflat Mission
Feb 19, 202411mThe Octonauts help rebuild some mudflats while reuniting a lost bird with its flock.
S4E18Lost Bottlenose Dolphins
Feb 19, 202411mTwo dolphins get stuck in a coastal saltwater lake during low tide.
S4E19Desert Creatures
Feb 19, 202411mKwazii and Periwinkle try to help a bird found in the Sonoran Desert.
S4E20Hawaiian Monk Seals
Feb 19, 202411mThe Octonauts must repair a coral reef protecting a lagoon from surrounding sharks.
S4E21Great Pacific Clean-up
Feb 19, 202411mThe Octonauts and Octo-Agents work together to clean up the Great Pacific Garbage Patch.
S4E22Volcano Sharks
Feb 19, 202411mWhen the underwater Kavachi volcano erupts, Ryla calls on the Octonauts to help.
S4E23Billabong Mystery
Feb 19, 202411mTracker and Koshi’s bird-studying mission is upended when a mysterious egg appears.
S4E24Spider Crab Surprise
Feb 19, 202411mThe Octonauts identify a mysterious creature that turns out to be a spider crab in need.
S4E25Mysterious Webs
Feb 19, 202411mWhen the Reef Base’s power is knocked out, Octo-Agents lead the charge to restore it.