D.E.M.: Quid Pro Quo

Rachel, Cam, Deborah and Dave are on the run. They are being hunted by person or persons unknown but they do know they are in grave danger.
When they are eventually tracked down, they are offered a stark choice. Execution or a mission. Their freedom in return for a task.
Quid Pro Quo
There really is no choice for the team, but when their individual histories start to rise from the darkness, the danger is beyond what any of them could have imagined.