Star Wars: Rogue One - 10 Major Plot Clues From The Final Trailer
9. The Rebels Break Jyn Out Of Prison Because Of Her Family
This one seems pretty obvious after watching the trailer, because, well, it's literally what we see happen.
In the previous trailers, it wasn't exactly clear was Jyn was an Imperial prisoner, or if she'd been captured by Rebels, as she was seen being led in handcuffs through Yavin IV.
Here, though, it's made clear that the Rebels break her out, orchestrating a fairly big jail-break in order to do so, and the reason is made clear too: sure, she's obviously got skills that will help them, but most important is her family, and the fact they've intercepted a message from her father.