Foundation is following the dream of psychohistorian Hari Seldon as he guides his organization, the Foundation, through intergalactic crisis'. Seldon wasn't able to guide his Foundation through the First Crisis due to being dead and only an AI construct. Fortunately, Salvor Hardin was there. Now Seldon is back, and his AI is still around also, together, they are preparing to ensure that the galaxy will not only survive the Second Crisis, but also all the following ones.
Source：https://www.cbr.com/foundation-seldon-second-crisis/
