S3·E4 Hollow Man

A man creates a holo-imager which is used on the new £100 notes. Another guy, North, who helped design the holo-imager and who is also supposedly dead, turns up alive, and is trying to make fake £100 notes to ‘up' his bank balance. Ros goes to dinner with the man who created the holo-imager and he ends up being told to shoot her, but he lets her go.