Nadir goes above and beyond the call of duty in his attempt to prove that witness Carl Caplan provided a fake account of events at Pete Larson's request to frame Smithy for murder. With Stamp and Hollis on close surveillance, Nadir discovers that Caplan lied in his witness statement, claiming he did not have a mobile phone - but just as Nadir thinks he's cracked him, DCI Keane throws him off the case. Meanwhile, De Costa and Perkins investigate when a young woman claims her father sexually abused her twenty years previously - but discover the therapist dealing with her case could have manipulated past events by prompting her to remember events which did not actually happen. (thetvdb.com)