Beneath the sea, over millennia, sentient beings await our final mistakes: soon they will make their move.

Manfred, an amateur seaweed collector, is convinced that algae are taking over the human race. Haunted by his past, Manfred falls in love with Nora, who has her own ideas about seaweeds and her own troubled history.

From a Cornish fishing village to the Spanish coast, up to the blinding glacial landscape of the Arctic, human society falls under the microscope in Rob Magnuson Smith's genre-bending existential drama Seaweed Rising.