Sick of trying to comfort a particularly self-pityingly drunk and angry Gene Hunt, Sam goes home only to be awoken in the middle of the night by Hunt himself, explaining, “I appear to have killed someone.” While Sam gets to work on proving his obstreperous colleague’s innocence in the shooting of a local underworld bookie, he is being monitored by the stand-in DCI, Frank Morgan, from Hyde division. Morgan is a man intent on doing the internal investigation by the book. So thoroughly, in fact, that Sam can’t help but be impressed by his methods, and his appealingly modern approach. And simultaneously he can’t help but accept that the evidence is stacking up against Gene Hunt.