A fighter jet ride prepares the crew for the G-forces of spaceflight. Haley, Sian and Chris relate the emotions they experience as launch approaches.

In the fourth episode, several women recall their harrowing experiences with one man's heinous attempts at virtual blackmail, aimed at obtaining sensitive sexual material.
A woman tells us: 'I received a message from a man who said: Send me a naked picture or I will kill you'. This young woman was able to add her case to those of other women who were encouraged to denounce and expose the harasser. No one is completely invisible on the Internet.

In every ocean… just beyond our shores…lives an animal with characteristics we think of as ‘human’ – intelligent, social, curious, gentle, and fierce. They build cities, use tools, and collaborate with other species to hunt. They have personalities – some are bold, while others shy. These animals can change their skin colour, texture, and body shape in a blink of an eye and see in wavelengths beyond our vision. Recent studies reveal octopuses’ consciousness, sophisticated decision-making, and unique personalities. On tropical reefs, in frigid waters, from the shoreline to the deep sea and everywhere in between, the octopus have made a home. Join us as we reveal ‘Secrets of the Octopus’.
In the first chapter, whether transforming their body shape and color to disappear or mimicking their deadliest enemy, Octopus use shape-shifting superpowers to survive.

After returning from Afghanistan with severe depression and PTSD, Harry Turner went to the Peruvian Amazon to end his life. There, he met conservationist and scientist Samantha Zwicker, and through their work together raising orphaned wildlife he is finding a reason to live.
'Wildcat' takes viewers to the remote Las Piedras River to witness how two orphaned ocelots and the solitude of the rainforest help a young man and young woman with traumatic pasts. This feature-length documentary is an intimate, character-driven story about the impact of wild places on us - and our impact on them.

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.

To recruit actors for his rehearsals, Nathan opens an acting studio in Los Angeles, teaching 'the Fielder Method', which involves covertly observing and imitating unaware subjects. Feeling insecure about his own performance, Nathan reenacts the class with actors and a fake Nathan as the teacher while the real Nathan plays the role of Thomas, a student. Nathan makes his students immerse themselves in other people's lives while he immerses himself in Thomas's life, even living in Thomas's home.
Nathan returns to Oregon, where his 'son', Adam, is now a teenager. Nathan and Joshua, the actor playing Adam, decide that Adam should lash out due to resentment of his absentee father and develop a drug problem, a situation that mirrors Angela's own past. Adam suffers an overdose and is tended to by emergency responders played by Thomas and another Fielder Method graduate. After he runs away from home, the 15-year-old Adam reverts to a 6-year-old since Nathan plans to relive his son's earlier years.