Red Rock Crabs: When Shellington and the crew try to gather some skittish crabs who have drifted away from home, they get help from some old friends. Sea Pigs: The Octonauts must stop a huge herd of ...

While trying to help Dashi on her missions, Peso's little brother, Pinto, gets himself in trouble with a bombardier beetle ...

It takes a spy to hunt a spy.

When red-hot volcanoes start a chain reaction of disasters across the ocean, the Octonauts must work together to face their biggest challenge yet.