Brian O'Byrne

Tennison is being pressured to retire by her male colleagues. Instead, she takes on a high-profile case, the torture and murder of a young Bosnian refugee.

The Labor Day holiday weekend finds Michael increasingly paranoid and edgy; Tommy proposes a radical lifestyle change to Eileen; Declan and Cassie's marriage problems escalate. Also available on Amazon Instant Video, iTunes and VUDU

Tommy and Colin try to cope with Judd's decline; Declan tries to clear his conscience as Michael feeds Franklin information to keep Freddie in jail; Eileen volunteers to help Mary Kate at the Social Services office. Also available on Amazon Instant Video, iTunes and VUDU

Tommy struggles to stay on track when he suddenly finds himself without his usual support network; Michael considers a lifestyle change, while Colin tries to find his father; Freddie asks Declan to find a missing associate. Also available on Amazon Instant Video, iTunes and VUDU

Rose sows unrest between her sons, which leads Michael to throw a wrench into Tommy's big real estate deal; Freddie asks Declan to use his police badge to negotiate with the competition; Tommy and Dana see more of each other. Also available on Amazon Instant Video, iTunes and VUDU

In the final series, Detective Superintendent Tennison is pushing 60 and facing the death of her father. Alcohol, loneliness, and the job have taken their toll, but she is determined to end her exemplary career by solving one more case: the brutal murder of schoolgirl Sallie Sturdy. Weeks away from retirement and struggling to stay afloat, Tennison forms an emotional bond with Sallie's closest friend, Penny Philips, and unwittingly puts the teenager's life in danger. Guest stars include Frank Finlay (The Pianist), Stephen Tompkinson (Wild at Heart, Brassed Off), Gary Lewis (Billy Elliot), and Eve Best (Nurse Jackie).

In the final series, Detective Superintendent Tennison is pushing 60 and facing the death of her father. Alcohol, loneliness, and the job have taken their toll, but she is determined to end her exemplary career by solving one more case: the brutal murder of schoolgirl Sallie Sturdy. Weeks away from retirement and struggling to stay afloat, Tennison forms an emotional bond with Sallie's closest friend, Penny Philips, and unwittingly puts the teenager's life in danger. Guest stars include Frank Finlay (The Pianist), Stephen Tompkinson (Wild at Heart, Brassed Off), Gary Lewis (Billy Elliot), and Eve Best (Nurse Jackie).

In Series 6, Tennison is being pressured to retire by her male colleagues. Instead, she takes on a high-profile case, the torture and murder of a young Bosnian refugee. When her prime suspect turns out to be a "minor" war criminal, Tennison meets resistance from her superiors, struggles with ambitious underlings, and uncovers buried secrets. Her career now at risk, she realizes she has little else left in her life and everything to fight for. Guest stars include Ben Miles (Coupling, The Forsyte Saga), Robert Pugh (Master and Commander), Clare Holman (Lewis), Frank Finlay (The Pianist), and Mark Strong (Sherlock Holmes, Syriana).

In Series 4, the newly promoted Detective Superintendent Tennison moves among stations to head high-profile cases for the Area Major Investigation Team. In Inner Circles, the manager of an exclusive country club is found dead in his home, and fingers ponit to the residents of a local housing project.

In Series 4, the newly promoted Detective Superintendent Tennison moves among stations to head high-profile cases for the Area Major Investigation Team. A wrenching personal decision colors her search for an abducted toddler in The Lost Child.

In Series 3, DCI Tennison has been transferred to a new station and a new assignment: getting prostitutes off the streets of Soho. But when a 17-year-old rent boy is burned to death, her superiors aren't keen on her investigating the murder. The victim was a regular at a center for homeless kids run by Edward Parker-Jones, the darling of the department. As if matters aren't thorny enough, a former lover comes to town and causes Tennison to question her life. Guest stars include David Thewlis (Harry Potter), Peter Capaldi (In the Loop), Mark Strong (Sherlock Holmes), Ciaran Hinds (Persuasion), James Frain (The Tudors), and Jonny Lee Miller (Trainspotting).

In Series 2, Tennison has proven herself and won her colleagues' grudging respect. When she is assigned to head a murder inquiry in the African Caribbean community, it seems further evidence that her star is on the rise. Suddenly she's in the thick of a racial controversy, working with a black detective who is also her former lover (guest star Colin Salmon, Keen Eddie), and dealing with prejudice in the field and on her team. Tennison begins to wonder if she's been handed a plum case or hung out to dry.