Based on your phrasing, this could refer to a few different shows that have significant S4E7 discussions or titles.

: This animated series has an episode titled " Glass Houses " (S4E7), which explores underwater legends like the city of Lamria and Prince Raja Chulan .

: A highly discussed S4E7 titled "Don't Do Anything Rash," which covers the massive Viltrumite War , the death of Thaedus , and the destruction of planet Viltrum .

: This show features an episode actually titled " The Space Between " (S4E7), focusing on characters' personal growth and navigating career/relationship boundaries.