@angiebcn89 Well ep 18 is to be watched before the flash episode (as it is the first episode for the crossover event), so I added the Season as a whole rather than listing the all the episodes.
I think I wrote something abut it in the list description as well!
Shout by SoniaVIP 6BlockedParent2019-09-13T17:20:06Z
Great list!! I have a question, though. You added Supergirl Season 1 as a whole (20 eps) and right after you added episode 18 of that season. What would be the correct order for that last part of Supergirl S1?