Stephen Amell had a visceral reaction when he read the synopsis for the upcoming "Crisis on Infinite Earths" crossover, so we can only imagine what he must be feeling now that he has seen the scripts.The Arrow star took to Twitter to share a sneak peek at the covers for each of the crossover's five episodes. While no plot details were revealed, the scripts do say to refrain from any social media posts that may "give away story lines, character details, etc."RELATED: Crisis on Infinite Earths Recruits The Flash's John Wesley Shipp

"Crisis on Infinite Earths" will be the sixth official crossover for the Arrowverse. Previous crossovers include "Flash vs. Arrow/The Brave and the Bold," "Legends of Today/Legends of Yesterday," "Invasion!," "Crisis on Earth-X" and "Elseworlds."

"Crisis on Infinite Earths" begins Sunday, December 8 at 8 pm ET/PT on Supergirl, then continues in Batwoman on Monday, December 8 at 8 pm ET/PT and in The Flash on Tuesday, December 10 at 8 pm ET/PT. After the winter hiatus, the crossover will conclude on Tuesday, January 14 in Arrow at 8 pm ET/PT and in DC's Legends of Tomorrow at 9 pm ET/PT.

KEEP READING: Crisis on Infinite Earths: Legends of Tomorrow's Jonah Hex Joins the Fray