After a storm, the Octonauts have to reunite a seahorse with its missing mate - who is about to give birth to baby seahorses.
Peso must gather all his courage when he travels deep down to the very bottom of the ocean, the midnight zone, and encounters the mysterious vampire squid.
A lost pilot fish who eats ocean gunk cleans up the Octonauts' dirty Gups - but he's still hungry. Meanwhile, Captain Barnacles must figure out why a Whitetip Shark is chasing the Gup-A.
When the Octonauts discover a pod of Beluga whales stranded at a breathing hole, they use music to lead them to safety.
When the Octonauts find an unusual sea star on the beach, they search the ocean from top to bottom (literally) to help find its home.
The Octonauts and some helpless crabs are caught between two territorial groups of aggregating anemones - and their numbers are growing!
When all the gups go out of control, Barnacles and Kwazii leap onto the backs of speedy Sailfish to round them up.
While exploring the deepest part of the ocean, the Midnight Zone, the Octonauts discover a strange rock that happens to be home to a new species of worm.
When a school of flying fish accidentally makes off with a rare book belonging to Professor Inkling, the Octonauts rig up the Gup-B to fly after them and get it back.
The Octonauts race against time to rescue Tweak's pal, a Leatherback Sea Turtle who's caught in a fast-moving ocean current that's sucking it into a whirlpool.
Kwazii and the Octonauts help their friends the coconut crabs discover who is stealing their coconuts.
Tweak must help her friend Sandy the sea turtle escape a hungry tiger shark.
The Octonauts journey across a dangerous expanse of ice to help a penguin mother get back to her family.
While exploring a dark and spooky cave, the Octonauts discover the fossil of a powerful, prehistoric fish... but it may be more than just a fossil.
The Octonauts struggle to save a pod of spinner dolphins who seem to be swimming in their sleep.
The Octonauts follow a strange song to a lonely humpback whale, who is alone because he doesn't sound like the other whales.
Returning home from a mission along an African river, the Octonauts have trouble getting past a gang of large, territorial hippos.
Dashi teams up with her little sister, Koshi, to solve a mysterious disappearance in a kelp forest.
This feature is only available for subscribers. Please contact your EnhanceTV school administrator or email email@example.com