Screenplex posted The Defenders opening credits sequence [above] that combines all four of The Defenders and centers on another member of their team: the city itself.
The city is a character in and of itself, sometimes an ally to the four Defenders and sometimes an enemy.
A video of the opening credits for The Defenders is available to watch.
The team-up between Daredevil, Jessica Jones, Luke Cage, and Danny Rand, also known as Iron Fist, is 2 years in the making.