Ep 4. The Human Strain

The first season of Salvation produced by Alex Kurtzman and Lori Lum Wiseman is about the U.S. government's discovery of a giant asteroid that is headed towards Earth and a secret plan to deflect it. Episode four titled 'The Human Strain', revolves around the threat of a deadly virus that has the potential to wipe out humanity, and how the characters try to contain it.

The episode opens with the team at Darius Tanz's asteroid-mining company, looking for ways to save humanity from the doomsday asteroid that is hurtling towards Earth. Meanwhile, Pentagon press secretary Grace Barrows (Jennifer Finnigan) is worried about a leaked document that predicts the end of the world. When a mysterious illness breaks out in Russia, causing chaos and death, the US government scrambles to contain the virus and find a cure before it spreads to the rest of the world.

The virus is highly contagious and seems to be airborne, with symptoms that include a high fever and flu-like symptoms. The government believes that the virus was intentionally released by a group of terrorists, and teams are dispatched to Russia to find out more about the virus and stop its spread. Meanwhile, Darius and his team come up with a plan to use a nuclear bomb to deflect the asteroid. However, the bomb must be detonated at a precise location on the asteroid, and they need to find a way to accurately target it.

As the team works towards finding a solution, Grace begins to suspect that the government may not be telling the whole truth about the virus. She teams up with an investigative journalist named Amanda (Sheila Vand) to uncover the truth about the virus and its origins. The two women embark on a dangerous mission that leads them deep into the heart of Russia, where they encounter resistance from the authorities and face numerous obstacles along the way.

Back in the US, the virus continues to spread, and panic begins to set in as people start to realize the severity of the situation. Darius and his team make progress in their plan to deflect the asteroid, but tensions rise when they discover that some powerful people may be working against them. Meanwhile, Grace and Amanda find themselves in grave danger as they get closer to uncovering the truth about the virus and the people behind it.

Overall, 'The Human Strain' is a suspenseful and intense episode that keeps the audience on the edge of their seats. The threat of a deadly virus and the race against time to find a cure creates a sense of urgency that is palpable throughout the episode. The characters are well-developed and their individual storylines add depth and complexity to the plot. The episode ends on a cliffhanger that sets up the next chapter in the series, leaving the audience eager to find out what happens next.