Upcoming episodes, programme details and where to watch over the next seven days. All times are UK time.
Love in the Time of Colorado: When a financial clerk sees a murder happen in front of him, he is forced to enter the programme, but refuses to take down his friend's wife. (S4 Ep3)
Meet the Shannons: Mary helps a Miss Congeniality teenage pageant queen cope when she suddenly realises that she's spent her entire life in the witness protect programme. (S4 Ep4)
Second Crime Around: Now under witness protection, a smooth-talking crook struggles to leave behind his life of crime. (S4 Ep5)
Something's A-mish: When a biker gang guns down a member of her community, Mary must protect a young Amish woman and her husband who are forced to leave and live under witness protection. (S4 Ep6)
I'm a Liver, Not a Fighter: Mary gets a witness who is terminally ill and reaches out to his family despite his objections to see if he can reconnect with his estranged children. (S4 Ep7)
Kumar Vs. Kumar: When a couple under witness protection ask for a divorce, Mary mediates the proceedings. Marshall is called to the couple's home by their child. (S4 Ep8)