Adam Thorn heads into the Malayan jungle, billed here as the oldest rainforest on the planet, to track down one of its strangest residents: the tapir, a pig-sized relative of the horse and rhino with a black-and-white coat and a trunk-like snout. The film follows Thorn on foot through dense undergrowth and along riverbanks as he searches for signs of the animal and films the wider cast of species sharing its habitat, from insects to birds to other mammals drawn to the same water sources. Along the way it makes the case for the Malayan jungle as one of the most biologically crowded environments on Earth, using the tapir's elusive, mostly nocturnal habits as a way into a broader picture of how the forest's food chain and terrain shape the animals living in it. It plays as a straightforward wildlife-tracking film built around patience and close observation rather than narration-heavy exposition.