tooth-and-nails: Post apocalyptic sci fi action movie with disabled leads. Body braces turned into…

Post apocalyptic sci fi action movie with disabled leads. Body braces turned into ad hoc armour with spikes and plate. Walking stick maces with nails through the nasty end. Crutches that hide single shot firearms nobody suspects. Jury rigged hearing aids to counter stealth and provide long range hearing to other team members. Armed raiders going for the world’s last stocks of prednisone. Beats us all never being seen because it’s implied we all died off.