Katie

As a idea.. Just a fans prospective.. I have watch every episode multiple times..

To bring Dexter back to life..

He wasn't even injured. It was planned for dexter to escape. A bulletproof vest.( he just left the police station. ) a blood bag full of his own recipe of sticky red stuff like he use to use in his spatter analysis. Once Harrison is gone, Dexter wakes up and slides a needle into Angela's neck subduing her, but she puts up a fight making dexter bleed into the fake blood. (Positive DNA of Dexters.) He then places her in her own police vehicle and drives to a alternate location. Kurts normal living place,( not the cabin in the woods, fbi is on thier way there )that he set up before meeting up with Harrison. He takes care of Angela in his almost normal fashion. To not get caught. But leaves some of Angela's blood,making it look like Kurt abducted her due to her finding his trophies at the cabin. Leaving Angela's vehical there to close the deal. Dexter then can find Harrison and move to Argentina to find that Hanna is still alive and well. Harrison made up that she died.