Driven by personal tragedy, former Green Beret and CIA operative Bryan Mills specialises in deadly rescue missions -- using his `very particular set of skills.' Assisted by Christina Hart, his handler back at headquarters, Mills sets out on assignment, armed with his unique expertise, high-tech capabilities and fearless determination. Whether it's the life of a loved one, a treasured possession or a dangerous international secret, Mills stops at nothing to get back what has been taken and punish those responsible.