Season 2 Episode
- Season 1 Thirsty Times
- Season 1 Caught in a Net
- Season 1 Taste of the Sea
- Season 1 Sounds of the Sea
- Season 1 Oily Feathers
- Season 1 Snail's Tale
- Season 1 Out of the Cold
- Season 1 Sixth Sense
- Season 1 Treasure Hunt
- Season 1 Beauty Parade
- Season 1 A-maze-d
- Season 1 Rapture of the Deep
- Season 1 Manatee
The Hydronauts - Season 1 Episode 9 Treasure Hunt
0.00 13 minutes The energy stone that makes Obo the computer work has disappeared. Neptuna and her friends must replace it so that they can continue on their voyage. They find an identical stone at Mr Octopus’s, who likes to collect shiny things to decorate his house. But Mr Octopus has no intention of helping our friends…
