Of course, as usual, the science is too simple. The antidote easily explained (though hard to produce) will be concocted in Bishop's lab with the help of a guy who helped develop the horrible stuff, using spinal fluid. Of course, this is the tip of the iceberg for what is going on with the upper echelons of a horror group. The episode has nice pacing and some good moments. It's still hard to fathom that a single injection can almost immediately render a virulent substance inert and bring a person back from a killing machine to his or her former self. A subplot in the real world is Dunham's sister who is being sued for divorce with custody at the center.