This fall, the CW DC shows will be doing their crossover and are calling it Crisis on Infinite Earths. In that story, Brandon Routh is reprising the role of Superman/Clark Kent, which he played in 2006's Superman Returns. However, Routh's costume and presumed storyline is from the iconic 1996 Elseworlds book Kingdom Come.

What is Kingdom Come? Why is it so revered?

Superman expert Michael Bailey, podcaster and creator of the "Fortress of Baileytude Podcasting Network" joins the show to discuss the seminal book, and the thoughts on how it will impact the Crisis crossover on the CW shows.