Seasons & episodes
S4 · E16Octonauts and the Surfing Snails 2017-09-06 · 11 min
When surfing snails are swept out to sea, it's up to Dashi and the Octonauts to save them.
S4 · E17Octonauts and the Yellow Bellied Sea Snakes 2017-09-13 · 11 min
When Peso gets stranded on a beach with a mass of poisonous snakes after a terrible storm, he and the Octonauts must somehow get them back to the ocean.
S4 · E18Octonauts and the Hippos 2017-09-20 · 11 min
Trying to return home from a mission along an African river, the Octonauts have trouble getting past a gang of large, mud-splatting, territorial hippos.
S4 · E19Octonauts and Operation Cooperation 2017-09-27 · 11 min
After Shellington crashes the GUP-D for the 3rd time, he and Kwazii team up with moray eels and grouper fish to help pick up the pieces and fix the vehicle before daylight occurs.
S4 · E20Octonauts and the Bomber Worms 2017-10-23 · 11 min
While diving down to the Midnight Zone, the Octonauts are attacked by bomber worms.
S4 · E21Octonauts and the Kelp Monster Mystery 2017-10-24 · 11 min
Dashi teams up with her little sister Koshi to help the Octonauts solve a mysterious disappearance in the Kelp Forest. This is the second episode in which is unknown who sounded the Octo-Alert.
S4 · E22Octonauts and the Coconut Crisis 2017-10-25 · 11 min
Kwazii takes a vacation on Coconut Island where he gets hit by some coconuts. Then he and the Octonauts must help their old friends the Coconut Crabs discover who's stealing all their coconuts.
S4 · E23Octonauts and the Baby Gator 2017-10-26 · 11 min
Kwazii adopts a baby alligator naming him Nipper, but when it escapes the Octopod, he and the Octonauts must rescue him.
S4 · E24Octonauts and the Spinner Dolphins 2017-10-27 · 11 min
The Octonauts struggle to save a pod of spinner dolphins who seem to be just swimming in their sleep.
S5 · E1Blue Whale Rescue 2020-12-28 · 11 min
When Kwazii discovers a blue whale with an injured tail, the Octonauts attempt to use a giant net and Octofloats to keep it from sinking. Meanwhile, Peso and Tweak collaborate on a special brace for its tail, and Kwazii, Dashi and Shellington try to find it enough food. But when the supporting net breaks, the Octonauts have to launch an emergency free-fall rescue!
S5 · E2Bluefin Tuna 2023-03-27 · 11 min
After an encounter with a school of migrating tuna, the Octonauts discover that one of the speedy fish, Tina, has been left behind. And she’s injured! Poor Tina has a hook stuck in her mouth and is too weak to swim. After Peso tends to her wound, the Octonauts agree to help get her to the tuna spawning grounds. But they’ll have to be quick: egg-laying season doesn’t last long. Luckily, Tweak’s latest gup, the Gup-R, is the fastest she’s ever built! The Octonauts use it to tow Tina, but when the Gup-R’s battery dies, how will they catch up to the rest of her school?
S5 · E3Whales of Mystery Air date unannounced · 11 min
Shellington is excited to find the distinctive tooth of a very rare creature, the spade-toothed beaked whale. Now, the Octonauts must find the tooth’s owner, so Shellington can study it, and so that Peso can help replace its tooth. But it won’t be easy: spade-toothed beaked whales like to be left alone and can dive very deep.
S5 · E4Ghost Ship Air date unannounced · 11 min
The Octonauts follow a trail of deep-sea debris to its source: a derelict ship floating unmanned on the surface. But the ship seems to be haunted by ghostly voices, which a quick dip below the water line reveals to be hundreds of barnacles stuck to the ship. As the ship drifts into waters too cold for the barnacles, the Octonauts must find a way to tow it to warmer waters before it sinks or falls apart.
S5 · E5Feeding Frenzy Air date unannounced · 11 min
While exploring a reef, Shellington and Dashi accidentally trigger a feeding frenzy with multiple sharks biting at anything that moves. As Barnacles and Tweak work frantically to plan a rescue, Shellington and Dashi try not to become shark food!
S5 · E6Sawfish Air date unannounced · 11 min
When Kwazii gets a case of pirate hiccups, he and Peso go up the river in search of a pirate doctor’s treasure that can cure him.
S5 · E7Nautilus Air date unannounced · 11 min
Kwazii sets off on a monster hunt, and soon encounters a shelled creature called a Nautilus.
S5 · E8Grey Whales Air date unannounced · 11 min
The Octonauts must help reunite a grey whale calf with his mother, keeping him well fed in the meantime.
S5 · E9Flying Squid Air date unannounced · 11 min
The Octonauts meet a flying squid who can help Kwazii's grandfather, Calico Jack, retrieve his treasure.
S5 · E10Sea Lions Air date unannounced · 11 min
When a wave traps Dashi in a cave with an injured sea lion, the Octonauts and sea lion pack must work together to save them. Using just some rope and a life buoy the pack fights against the waves to save them. Can they save them before it is too late?
S5 · E11Hawksbill Sea Turtle Air date unannounced · 11 min
The Octonauts must guide an ill-stricken hawksbill sea turtle into cooler waters, in order for her to lay healthy eggs.
S5 · E12Wood Eating Catfish Air date unannounced · 11 min
When Kwazii is found with an injury, he tells the tale of how he and Calico Jack encountered a fish that ate his peg leg.
S5 · E13Seven Sea Squirts Air date unannounced · 11 min
The Octonauts help a band of algae-shooting sea squirts reunite in order to stop an outbreak in the reef.
S5 · E14Bullfrogs Air date unannounced · 11 min
When the Vegimals accidentally bring bullfrogs into the Octopod, they must rally them up and bring them back home before the Octonauts find out.
S5 · E15Giant Sea Spiders Air date unannounced · 11 min
Kwazii and Shellington get lost in the Antarctic’s deep seas, before meeting a family of giant sea spiders who may know a way out.