In case you were worried that they'd be downplaying or underselling Jessica's abilities (as Marvel has unfortunately done with characters like Black Widow), here's a jump halfway up a building to set your mind at ease. In a flash, she goes from pavement to second floor and starts to climb. The trailer (and this part in particular) makes it clear that we'll be spending a lot of time in the darkest parts of Hell's Kitchen, as we did in Daredevil. As she jumps, the voiceover tells us that "some cases just won't let you go". Wonder what- or who- she could possibly be referring to?