In its first season, “Supergirl” famously adapted a classic Alan Moore and Dave Gibbons story in “For The Girl Who Has Everything,” an epidse that offered viewers – and Kara Zor-El – a glimpse of what might have been had she not been rocketed to Earth like her famous cousin. Now, a new promo for…

via Supergirl Promo Features Major Crisis on Infinite Earths Easter Egg — CBR.com