Episode 5 - The Inhabitants of Sierra Morena The Mediterranean Basin is one of the planet’s most biologically rich and complex regions. The crossroads of Europe, Asia and Africa is considered to be one of Earth’s biodiversity hotspots. A vast number of both animal and plant species unique to the region live in its various habitats. The Mediterranean Basin is located in one of the planet’s temperate zones. The subtropical climate makes it colder and wet here in winter, hot and dry in summer and mild and rainy in autumn and spring. Occupied by human beings for more than 8000 years, the Mediterranean Basin has experienced dramatic changes to its forest and woodland areas, but nevertheless, they are still among the most diverse on the planet. From marshlands to high mountain ranges, from forests of holm and cork oaks to oak and pine forests high up in the mountains. All of them are home to thousands of animal and plant species, whose paths cross on their adventures through life. And each one of them has a story to tell…

Episode 2 - The High Country In Kosciuszko National Park, Aaron and Holly visit an unheralded site: the birthplace of the Snowy River. All the stories in this series are connected by a unifying idea: the land is alive. The land is a being, a living entity. Back to Nature is a visually stunning documentary series featuring actor Aaron Pedersen and writer Holly Ringland as they take you on a journey into the deep interconnectedness between human beings and the landscape. These headwaters have long been sacred to Ngarigo people. They walk to the Ramshead Range, a stunning landscape of silent beauty, filled with granite tors carved in the last ice age. The vegetation here draws and holds moisture from the sky, releasing it to form rivers. Three of Australia's most iconic rivers are formed in these alps: the Snowy, the Murray and the Murrumbidgee. Each summer, millions of Bogong moths use the Milky Way to navigate here to the granite caves. Aaron tells Holly about the festive "Bogong ceremonies" long enjoyed by First Nations people. At Charlotte Pass, we see intensely coloured, twisting snow gums. Descending, Aaron and Holly cycle along the Cascade Trail to Cascade Hut. Local writer Elyne Mitchell once sheltered here: famous for her children's books, she was also one of Australia's earliest environmental writers. Further down in altitude is the Lower Snowy River. River guide and Wiradjuri man Richard "Swainy" Swain shows Aaron and Holly how to introduce themselves to Country. They kayak on the river. Back on land, Country opens up. We see a large wendai (canoe scar). Swainy explains that the tree from which the bark was taken is still thriving because the people who cut the bark would have sought permission from the tree. Around a campfire, Swainy shares that Country is crying out for all of us to listen to it.

59 - Entangled.... While chasing a space weevil, Cat encounters Kryten conducting an experiment with the quantum rod from Trojan. It unexpectedly causes the two of them to become 'quantum entangled', meaning they are more prone to coincidences such as saying the same thing at exactly the same time, especially when emotionally stressed. Meanwhile, Rimmer comes up with a complicated new accident reporting system, involving filling out a form several pages long, which frustrates Lister. Lister discovers a moon with signs of life and heads down in Starbug, hoping to find out if his former lover Kochanski passed this way. Much later he returns – minus Starbug. He explains that he played poker with some GELFs known as BEGGs (biologically engineered garbage gobblers) and lost Starbug, as well as Rimmer. Also, the BEGGs have outfitted him with an explosive device attached to his groin that will explode if he does not pay up. An offer of an alternative deal goes nowhere and another poker game is proposed. Unfortunately, Kryten and Cat's quantum entanglement combines with a stressed Lister's insistence that he does not 'choke' in poker games and causes the BEGGs to choke to death. Hoping to use the quantum entanglement to save his life, Lister gets Cat stressed (by cutting off locks of his hair) and the Dwarfers learn some space co-ordinates that lead them to a space station that Kryten recognises as a science institution that was staffed by scientists who were always wrong. Investigating the station's stasis pods, they discover that one is still functional and contains a professor, Irene Edgington – who turns out to be a chimp because an evolution device she invented went wrong. The Dwarfers take Edgington back to the ship and use her device to make her human again. She tells them how to remove the device, but they have to do the opposite of everything she suggests because all her instructions (excluding the last one) are incorrect. After saving Lister, Edgington takes a walk with Rimmer (who she seems to like) and ends up accidentally trapped in an airlock. She presses the wrong button and is ejected into space. Lister gives Rimmer the accident report forms to fill in.

Episode 3... The countdown to payday begins as Jack hunts down Barry's killer, but as the truth begins to come out, Jack's world is turned upside down.