Singapore's forests survive in patches squeezed between highways and high-rises, and this episode of David Attenborough's Wild City series goes looking for what still lives in them. Raffles' banded langurs, one of the rarest primates in Southeast Asia, move through the canopy in family groups, their numbers so low that researchers can track individual animals by sight. The cameras also find flying dragons, small lizards that glide between tree trunks on winglike flaps of skin, weaving ants that stitch leaves together with silk spun by their own larvae, and mouse-deer picking through the undergrowth at dawn. Several sequences, including behavior from the langurs and the forest's scorpions, have reportedly never been filmed before. Attenborough's narration keeps returning to the same tension: a nature reserve a short drive from a financial district, where wild animals adapt to noise, fragmentation, and human traffic on the reserve's edges. The episode treats the forest less as untouched wilderness than as a survivor, and lets the footage of its residents make the case for why that survival matters.