Kwazii and Dashi become entangled in a strange deep-sea creature - a siphonophore - and when a geyser blasts it toward the surface, the Octonauts must stop its ascent before it fatally bursts.
Olivia and The Clouds explores love's complexities through a Rashomon effect. Olivia, haunted by a past love, hides it under her bed. She trades flowers with this ghost in exchange for comforting rain clouds.