Life on Mars

The team receives a warning, claiming the IRA has planted a car bomb in Manchester. Sam realises the warning doesn't conform to IRA techniques. However, when Sam's knowledge backfires, nearly killing Ray, the department shuns his line of investigation to focus on an Irish socialist group. Meanwhile, Sam's visions of the future suggest he may have suffered brain damage, affecting his higher reasoning, due to him being in a coma for so long.