This is the first mission of The Vault.

Chase Anderson is a hitman, the best at what he does even though he isn't a fan of his line of work. A wealthy businessman - going by the name Hank Grewer - hires Anderson and three others to get back the money that the corrupt guvernor took from him during an FBI raid to his mansion; 800 million dollars. The job seems to be simple - however, things go horribly wrong and Chase is left with no reward and no real allies. A huge cat and mouse-game begins and everybody seems to have the same target; get the money by any means necessary.