Capture and escape

Whether the young girl is X-23 or not, she is the reason for the Reavers’ clash with Logan. There is a shot in the trailer in which she appears to escape by jumping from a building. Is this in the beginning or toward the end of the movie?
And then there is another shot featuring the girl in which she is shackled – by the Reavers, of course, after they’ve arrived at Wolverine’s place. Is this a shot that takes place before she jumps, or after?
As clear and grounded as the trailer may be, there are still quite a few questions which can arise. And, just like the one before this, I do believe that the answers are essential. Who helps the girl after she escapes? How does she reach Logan? Was she experimented upon before her escape or only afterwards?
Time will tell…
