U.S. police chief Bill Hixon lands in the British town of Boston, Lincolnshire, with his 14-year-old daughter Kelsey in tow hoping they can flee their painful recent past. But this unfamiliar, unimpressed community will force Bill to question everything about himself and leave him asking whether it’s Boston that needs Bill, or Bill that needs Boston?

Michael lives in two separate realities after a car accident. In one reality, his wife Hannah survives the accident; in the other reality, his son Rex survives. Michael does not know which reality is “real”, and uses the wristbands to differentiate the two. He sees two therapists: Dr. Jonathan Lee in the “red reality” and Dr. Judith Evans in the “green reality”. At work, Michael’s erratic behavior triggers clashes with his team; they do not know about Michael’s uncanny ability to solve crimes using details from both realities.