Season 4 (2024)
Episodes: 25
Star Cast:
Episodes List
Ep.1 Solar Storm
Air Date: 2024-02-19
A solar storm throws off some whales’ senses of direction, as well as the Octonauts.
Ep.2 Frigatebird
Air Date: 2024-02-19
Tracker and Kwazii help some fish whose food keeps getting stolen by a frigatebird.
Ep.3 Madagascar Tsingy
Air Date: 2024-02-19
When Selva encounters an injured creature, Peso journeys to provide medical aid.
Ep.4 Permafrost Problem
Air Date: 2024-02-19
The Octonauts help when they discover melting permafrost endangering an ecosystem.
Ep.5 Mudslide
Air Date: 2024-02-19
When a rainstorm surges, the Octonauts contend with an oncoming mudslide.
Ep.6 Honeybees
Air Date: 2024-02-19
The Octonauts help a colony of honeybees that are trapped in a sinking tree.
Ep.7 Boiling River
Air Date: 2024-02-19
While in search of a boiling river, Kwazii and Paani meet some tamarin monkeys.
Ep.8 Kalahari Copycat
Air Date: 2024-02-19
When a fire threatens a meerkat burrow, the Octonauts must put it out.
Ep.9 Ringed Seals
Air Date: 2024-02-19
Arctic ringed seals are threatened when warming temperatures diminish their snow caves.
Ep.10 Alpine Swift
Air Date: 2024-02-19
The Octonauts assist an alpine swift to catch up with its flock.
Ep.11 Elephant Swim Lesson
Air Date: 2024-02-19
A baby elephant separated from its herd needs the Octonauts' help swimming to safety.
Ep.12 Hazardous Habitats
Air Date: 2024-02-19
While collecting pictures, Dashi and Shellington get trapped in a flooding cave.
Ep.13 Iguazu Falls
Air Date: 2024-02-19
The Octonauts must clear a logjam while protecting a family of birds.
Ep.14 Arctic Blizzard
Air Date: 2024-02-19
When a blizzard hits, Captain Barnacles will need to use all his Arctic survival tactics.
Ep.15 Gobi Desert
Air Date: 2024-02-19
A replanting mission is interrupted when a gazelle goes missing just as a sandstorm hits.
Ep.16 Caddisfly Silk
Air Date: 2024-02-19
On a mission to study caddisfly silk, Bud and Paani get washed down a river.
Ep.17 Mudflat Mission
Air Date: 2024-02-19
The Octonauts help rebuild some mudflats while reuniting a lost bird with its flock.
Ep.18 Lost Bottlenose Dolphins
Air Date: 2024-02-19
Two dolphins get stuck in a coastal saltwater lake during low tide.
Ep.19 Desert Creatures
Air Date: 2024-02-19
Kwazii and Periwinkle try to help a bird found in the Sonoran Desert.
Ep.20 Hawaiian Monk Seals
Air Date: 2024-02-19
The Octonauts must repair a coral reef protecting a lagoon from surrounding sharks.
Ep.21 Great Pacific Clean-up
Air Date: 2024-02-19
The Octonauts and Octo-Agents work together to clean up the Great Pacific Garbage Patch.
Ep.22 Volcano Sharks
Air Date: 2024-02-19
When the underwater Kavachi volcano erupts, Ryla calls on the Octonauts to help.
Ep.23 Billabong Mystery
Air Date: 2024-02-19
Tracker and Koshi’s bird-studying mission is upended when a mysterious egg appears.
Ep.24 Spider Crab Surprise
Air Date: 2024-02-19
The Octonauts identify a mysterious creature that turns out to be a spider crab in need.
Ep.25 Mysterious Webs
Air Date: 2024-02-19
When the Reef Base’s power is knocked out, Octo-Agents lead the charge to restore it.