Smithy wakes up to a living nightmare as DCI Keane from the DPS arrives to charge him with drink-driving and interrogate him on suspicion of deliberately killing Louise Larson. Nadir is convinced that Pete Larson has framed Smithy for Louise's murder and sets out on a one-man crusade to try and prove his innocence. When forensics confirm that the car which killed Louise doubled back and drove at her a second time, the slightest possibility of the whole incident being an accident is thrown out of the window. As Smithy begins to remember details of the event, Keane becomes only more convinced of his involvement when a witness comes forward and identifies him as the driver. (thetvdb.com)