<Tr> <Td_colspan="2"> Website </Td> </Tr> <P> Salvation is an American suspense drama television series, that premiered on July 12, 2017 . An official trailer was released on May 10, 2017 . The series was originally announced as being developed in September 2013, but received its straight - to - series 13 - episode order in October 2016 . On October 18, 2017, CBS renewed the series for a 13 - episode second season, which premiered on June 25, 2018 . </P> <P> The show centers on the discovery of an asteroid that will impact the Earth in just six months, highlighting the attempts to prevent it and its worldwide ramifications . The show looks at how different individuals and groups of people react to the impending doom . </P> <Ul> <Li> Santiago Cabrera as Darius Tanz, a billionaire scientist who is the founder and CEO of Tanz Industries and a pivotal player in the United States' defense against the impending asteroid . Darius briefly serves as the Vice President of the United States before becoming president after President Mackenzie's assassination . </Li> <Li> Jennifer Finnigan as Grace Barrows, the Pentagon press secretary, later Senior advisor to President Mackenzie and later President Tanz; she has an intimate relationship with Harris and works with Darius to prevent the asteroid collision . </Li> <Li> Charlie Rowe as Liam Cole, a student at MIT and later Darius' protégé; he is one of the first people outside the government to predict the asteroid's impending collision with Earth . He and Darius work together on an EM drive for a gravity tractor they hope to use to change the asteroid's course . </Li> <Li> Jacqueline Byers as Jillian Hayes, a science fiction writer from Boston who becomes involved with Liam and is later chosen by Darius to pick 160 survivors to leave Earth if the asteroid collision cannot be stopped . </Li> <Li> Rachel Drance as Zoe Barrows (season 1; recurring season 2), Grace's daughter </Li> <Li> Shazi Raja as Amanda Neel (season 1), an investigative reporter who is searching for the truth about Darius' and the government's secrets . After learning about the asteroid, Amanda is assassinated before she can publish the story . </Li> <Li> Ian Anthony Dale as Harris Edwards, a graduate of the United States Air Force Academy who now serves as the United States Deputy Secretary of Defense and is one of the few people in Washington, D.C. who knows of the asteroid's impending impact . He is described as a skilled operative but an even better bureaucrat . </Li> <Li> Ashley Thomas as Alonzo Carter (season 2), a detective with the D.C. police who is investigating the disappearance of Claire Rayburn </Li> <Li> Melia Kreiling as Alycia Vrettou (season 2), a brilliant computer scientist, former protégé of Darius Tanz, and member of RE / SYST, leading an international group of captive scientists to come up with a plan to prevent the asteroid collision </Li> </Ul>

What is the show salvation about on cbs
find me the text answering this question