In this edition from Australia, we meet the barefoot bushman, orphaned koalas and dingoes. Plus, a visit to the Great Barrier Reef.

Geoffrey Palmer speculates on what makes people fish, talking to fishermen and showing unique underwater photography of the fish themselves.

1/6 films examining the sexual behaviour of animals. This prog focuses on the varied tactics that males use to win females & the chance to mate.

Kryten contracts a deadly computer virus, so the crew are forced to enter his electronic mindscape. There they find themselves in a wild west town, facing metaphorical gunslingers.