Banks isn't back, and that's the problem.
If DCI Alan Banks had been in his office when his old neighbour came calling, perhaps it would have turned out differently.

Perhaps an innocent man would still be alive.

And perhaps Banks's daughter wouldn't be on the run with a wanted man.

But Banks is on holiday, blissfully unaware of the terrible chain of events set in motion by the discovery of a loaded gun in a young woman's bedroom, and his daughter's involvement with the ultimate bad boy . . .