Host Neil deGrasse Tyson features his interview with "Game of Thrones" author, George R.R. Martin where they explore the science and history behind the fantasy series. Neil discusses medieval Europe's influence on fantasy, the history of dragons, and the science of zombies and shape-shifting with co-hosts comedian Matt Kirshen and medieval expert Racha Kirakosian. Additional commentary provided by paleontologist Mark Norell, professor of psychiatry Steve Scholzman, astrophysicist Charles Liu, and Bill Nye, the Science Guy.