The CW has published the first trailer for the DC universe crossover titled "Crisis on Infinite Earths".
In the storyline, the characters of "Arrow", "Batwoman", "The Flash", "Supergirl" and "Legends of Tomorrow" will have to unite to save the worlds from collapse and total destruction.
The producers brought Tom Welling, who played Clark Kent in the series "Smallville", into the filming of the episodes. The crossover will show several versions of the superhero. Reportedly, "Titans" and Lucifer may also appear.
Episodes of "Crisis on Infinite Earths" will air on the following days: