X-Factor's Polaris guest-stars in the dramatic conclusion to Samson's series! Doc faces certain death at the hands of a serial killer who can absorb gamma powers! Time for a little help from his friends Polaris and Geiger! It's more green hair than you can shake a bottle of peroxide at! Written by Dan Slott and Evan Skolnick. Art by Roberto Flores, Andrew Wildman, Joe Bennett and Brad Vancata. Cover pencils by Ken Lashley.