The risk of human extinction has never been higher. Recent years have seen a global pandemic, a renewed nuclear threat and runaway climate change. New research predicts a 1 in 6 chance that life as we know it won't make it to the end of this century. This compelling science documentary looks at the greatest risks to humanity and what we can do about it. Are we all doomed?

Street Fighter and Mortal Kombat give rise to head-to-head fighting genre, but the increasing graphic violence in games brings controversy.

Space. Gone are the bayonets and pistols, the bows and arrows, the slingshots and stones of past warfare. Now, we have pushed into the outer limits, into a vast frontier, well beyond earth's atmosphere. Human beings have long contested the domains of air, land, and sea. Now we are racing toward a new domain. How we use space will decide our Earthly fate, a future determined not by any previous war.

In the second episode, panic strikes the community as a full-blown catastrophe looms. Locals mobilize to confront the authorities and protest the nuclear power industry.
Twenty-eight hours after the accident began, the lieutenant governor appeared at a news briefing to say that the plant's owner had assured the state that 'everything is under control'. Later that day, Scranton changed his statement, saying that the situation was 'more complex than the company first led us to believe'. There were conflicting statements about radioactivity releases. Schools were closed and residents were urged to stay indoors. Farmers were told to keep their animals under cover and on stored feed.

In the third episode, during cleanup at the plant, insiders claim that cost-cutting measures and intimidation tactics create a danger war force than the accident itself.
Several state and federal government agencies mounted investigations into the crisis, the most prominent of which was the President's Commission on the Accident at Three Mile Island, headed by chairman John G. Kemeny. The investigation strongly criticized Babcock & Wilcox, Met Ed, Graphics processing unit, and the Nuclear Regulatory Commission for lapses in quality assurance and maintenance, inadequate operator training, lack of communication of important safety information, poor management, and complacency.
Kemeny said that the procedures and that the control room were greatly inadequate for managing an accident.

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.