DCI Banks
S5 E5 Undertow: Part 1 Banks struggles to put personal feelings aside as the team begins the job of finding out exactly who was responsible for the incident that affected all their lives.
DCI Banks
S5 E6 Undertow: Part 2 As Helen is forced to choose between career ambition and loyalty to her team, Banks must grapple with dark emotions if he is to discover who was behind the attack.
Lewis
S8 The Lions of Nemea The team's abilities are sorely tested when they investigate the brutal murder of American classics student Rose Anderson, whose body is hauled from the canal with stab wounds to the neck and abdomen. Initial suspicion falls on the wife of astrophysics professor Felix Garwood, who had recently broken off an affair with Rose, and is married to Rose's PHD supervisor. Could the jealous wife have committed murder?