TV Guide Alibi

Vincent Petit, the former resident of a children's home, meets a grisly end while revisiting the establishment to deliver a speech about how his time there helped shape his life. Darlene and Marlon track prime suspect Marianne, who was spotted at the scene with a knife in her hand. At the bar, Selwyn meets daughter Andrina for the first time. Ralf Little, Don Warrington and Ginny Holder star

Crabtree investigates the suspicious death of professional wrestler 'Handsome' Randolph Henderson, shortly after he suffered a head slam in the ring. Grace can find no serious physical injury, but does uncover evidence the showman succumbed to a large dose of morphine. Crime drama, set in 19th-century Canada, starring Jonny Harris, Georgina Reilly and Yannick Bisson

On voting day Crabtree and Brackenreid find a dead man on the street, who it transpires was an agent tasked with tracking a German spy suspected of infiltrating Canada's armament industry. Murdoch is convinced the killer came from inside a nearby polling station, but he also suspects he isn't being passed all the requisite facts. Meanwhile, the suffragettes are forced to take action after discovering their candidate has been left off the ballot. Yannick Bisson stars

Sullivan asks for Father Brown's help when Mrs Devine's son Eddie is framed for murder. Fifties-set crime drama based on the stories by GK Chesterton, starring Mark Williams and Tom Chambers

The team investigates the murder of an estate agent, who has been killed ahead of the potential sale of local beauty spot St Agatha's Cove. Marlon leads a counterfeit goods case to impress the Commissioner, while love is in the air for Neville following an unexpected encounter. Ralf Little, Don Warrington and Ginny Holder star

In Saint Barnabas, Naomi attends the wedding of her best friend Monique. However, the jollity of the day comes to an abrupt halt when Rex, the estranged husband of Monique's mother Odette, is fatally stabbed. Knowing the case requires full investigation, Naomi calls the team for help. Meanwhile, Marlon tries to prepare for his sergeant exams but is easily distracted. Ralf Little, Don Warrington and Shantol Jackson star

Vincent Petit, the former resident of a children's home, meets a grisly end while revisiting the establishment to deliver a speech about how his time there helped shape his life. Darlene and Marlon track prime suspect Marianne, who was spotted at the scene with a knife in her hand. At the bar, Selwyn meets daughter Andrina for the first time. Ralf Little, Don Warrington and Ginny Holder star

Neville receives an anonymous letter telling them a murder is about to be committed. Not long after, he and Naomi are called to the harbour when a body is pulled from the ocean. The victim suffered blunt trauma and it is soon suggested that his disgruntled wife may be a person of interest. Marlon returns after taking a short holiday following his disappointing exam results. Sun-kissed detective drama, starring Ralf Little, Don Warrington and Ginny Holder

Following Neville's arrest on suspicion of killing David Cartwright, DI Karen Flitcroft from the Department of Policing Standards arrives to investigate. CCTV footage shows an agitated Neville visiting the victim shortly before he was found dead, which as far as Flitcroft is concerned proves his guilt - so she advises the team members that if they are convinced of their inspector's innocence, they must prove it quickly. Robert Webb guests stars in the crime drama, with Ralf Little

The team investigates the murder of a renowned calypso singer's husband. Neville believes it is poison since the paramedics found blue traces on the man's fingers, but there are several lines of inquiry to follow. Away from the case, Neville struggles with Sophie's betrayal and informs the Commissioner that he intends to leave Saint Marie in order to extract himself from various reminders. Ralf Little and Don Warrington star

Following Neville's arrest on suspicion of killing David Cartwright, DI Karen Flitcroft from the Department of Policing Standards arrives to investigate. CCTV footage shows an agitated Neville visiting the victim shortly before he was found dead, which as far as Flitcroft is concerned proves his guilt - so she advises the team members that if they are convinced of their inspector's innocence, they must prove it quickly. Robert Webb guests stars in the crime drama, with Ralf Little

The team investigates the murder of a renowned calypso singer's husband. Neville believes it is poison since the paramedics found blue traces on the man's fingers, but there are several lines of inquiry to follow. Away from the case, Neville struggles with Sophie's betrayal and informs the Commissioner that he intends to leave Saint Marie in order to extract himself from various reminders. Ralf Little and Don Warrington star

The Caribbean-set crime drama returns, and there is a double celebration as the show marks its landmark 100th episode and Commissioner Selwyn Patterson celebrates 50 years of service. However, the party is cut short when the boss is shot by a mysterious assassin and left fighting for his life. As the team members search for the culprit, will the police veteran survive? Starring Ralf Little, Don Warrington and Shantol Jackson