The Shadow Walkers (2006)
Plot: A group of lab technicians and military personnel awaken in a high-security subterranean laboratory with no memory of who they are or how they got there. They soon discover the facility is in lockdown and they are trapped. As they venture deeper into the complex to find an escape, they are stalked by "Shadow Walkers"—genetically engineered super-soldiers with razor-sharp claws and jagged teeth that blend into the darkness. As the survivors begin to regain their memories, they realize they weren't just victims of the facility, but were active participants in the horrific experiments that created the monsters now hunting them.
