While testing out the new Terra-Gup 6, Tweak crash lands in the desert.

A Portuguese man o’ war washes ashore; the Octonauts need to reunite him with his legion.

The Octonauts help protect some creatures from rain when the rain shadow effect fails.

When a hoatzin’s eggs go missing in the Amazon, the Octonauts work to get them back.

A search for a gift for Captain Barnacles leads the Vegimals and Shellington to India.

When his little brother Pinto gets trapped on a piece of ice, Peso has to rescue him.

Paani and Min use the new Octoblimp to map a ‘river in the sky’.

Harmful algae create a red tide on the Florida coast, causing creatures to get sick.

When the Terra-Gup 1 is damaged, Barnacles and Koshi work together to repair it.

While cleaning up a fire, the Octonauts encounter some fast-learning orangutans.

When a termite colony gets sucked into an aardvark’s nose, the Octonauts head to the rescue.

When a flamingo chick gets left behind, it’s up to the Octonauts to save the young bird.

A lyrebird confounds the Octonauts with its ability to mimic any sound it hears.

When winter comes early in Canada, the Octonauts help some hares with their camouflage.

Kwazii finds that the 'dragon' he’s met is really a Gila monster.

Tweak and Bud find themselves stranded on a floating island made of papyrus reeds.

A Malabar squirrel, stuck aboard the Octoray, starts to build stashes all over the ship.

While cleaning after a storm, the Octonauts find a primate known as a spectral tarsier.

It’s an underwater mystery when a valuable protective shell goes missing.

The Octonauts must track down some Australian possums and help them return home.

When a sea turtle loses a chunk of its shell, Tweak and Bud must engineer a solution.

The Octonauts must chase away some hungry wolves while in the Yellowstone ecosystem.

Tracker spots some northern bald ibises migrating in the wrong direction.

During a mission to replant the area around Mount Kilimanjaro, the Octoray gets stuck.