As the drought drags on with the sun continuing to blaze down from a cloudless sky and harvest time gets closer, Jeremy Clarkson and his motley crew have a fearsome list of jobs to complete.

In the Taurus Mountains Simon stays with descendants of the original Turks, nomads known as Yoruks, whose lifestyle is under threat from the modern world and an increasingly religious government. They're not the only minority at odds with the authorities in Turkey; Simon sees first-hand the devastating effects of fighting in the country's Kurdish region. In an area where the government has detained foreign journalists, Simon gathers unique footage in the aftermath of a crackdown on Kurdish militants - the wholesale destruction of the historic centre of one of Turkey's oldest cities.
Away from the conflict in the south, Simon heads towards the Black Sea coast. He meets a wildlife conservationist protecting Turkey's population of brown bears, and villagers who still communicate over long distances using an ancient bird language. In the country's capital he meets a victim of President Erdogan's authoritarian purge of people accused of complicity in the failed coup against him.
Finally Simon's journey comes full circle when he returns to Istanbul - home to the new craze of 'Ottomania', a celebration of the vast empire that preceded modern Turkey. Simon visits the set of one of the world's most popular TV dramas - even getting a speaking role - based in the court of an Ottoman sultan

The archaeological world is fooled for nearly half a century when an ape-like skull that's claimed as solid evidence for Darwin's theory of human evolution is proven fake. Using new research, experts investigate and uncover the identity of the forger.
Locked away in a store room at London Science Museum is a genuine 19th century miracle machine, a 180-year-old mechanical engine that solves complex mathematical equations, more than 100 years before the first electronic computer.

In 1979, law enforcement is thrilled when the East Area Rapist attacks abruptly stop in Northern California. But in reality, the East Area Rapist had only moved 400 miles south, to commit a number of gruesome murders in the Santa Barbara area, where he would become known as the Original Night Stalker. Michelle McNamara ultimately came up with the name 'Golden State Killer' cause he terrorized up and down the state.
Michelle starts to write a true crime book that would transcend the genre because the way she humanized all of the victims.

Principles of generosity and prosperity inform the selection of the last two crew members: Christopher Sembroski, a former member of the U.S. Air Force who served in Iraq and now works as a Lockheed Martin engineer, and Sian Proctor, a professor of geosciences and two-time NASA astronaut candidate. Excitement for the flight ramps up, but anxiety lingers.

As training begins, the crew members process the physical, mental and technical demands being placed on them. The group is going to be in some intentionally uncomfortable situations and, to see how they do as a team. A climb of Mt. Rainier puts them to the test.