Broken hearts do not fully heal. Even if they are mended, fissures remain, and over time, pressure can split open old wounds.
There was a time when Isabelle and I were solid. There was a time when it was just the two of us against the world. I ignored the cracks beneath the surface. Now, everything is different. They are after us, and they are not going to give up no matter what. They have more resources, more man-power, more strength.
What do we have? We used to have each other, but now...I'm no longer certain we have even that.  
What happens when the new life we tried to build shatters once and for all?