Taronga vets lead a koala rescue mission, using thermal drones to track them and testing for chlamydia. Sea lion Charlie is treated for kidney stones. The elephants get their annual health checks, and three orphaned emu chicks are fattened up for release.

Taronga attempts to breed endangered Asian elephant Anjalee with Gung as time runs out. Bongo antelope Ekundo undergoes training for a stress-free blood draw. Plus, two pairs of Fiordland penguins face a tough breeding season to hatch their eggs.