Bahama Bound Harts: The Harts discover that a famous recluse has been replaced by an imposter to take control of his fortune - but how can they prove it? (S4 Ep16)
Harts on the Scent: The Harts' foray into the world of fragrance turns deadly when the sweet smell of perfume turns into the scent of murder. (S4 Ep15)
In the Hart of the Night: The Hart's old friend King Rashid is in danger of being run out of his country. Jonathan and Jennifer fly in to help but end up tangled in an assassination plot. (S4 Ep8)
Million Dollar Harts: When the Harts hit London Jennifer finds herself embroiled in a gambling ring that could have deadly consequences for the couple, also starring Simon MacCorkindale. (S4 Ep3)
Hart and Sole: The Harts suspect they're being spied upon in an episode full of espionage and undercover agents, and it's up to Max to take a man down with his signature move. (S3 Ep21)
Deep in the Hart of Dixieland: Jonathan breaks out his jazz trumpet for a performance with an old friend, but when the musician is accused of murder everything goes out of tune. (S3 Ep19)
Blue and Broken Harted: After a conversation about their past-loves and a very public bust-up it seems the Harts marriage might be in trouble. Could someone be trying to break them up? (S3 Ep17)
The Hart of the Matter: A trip to a beautiful French hotel becomes shrouded in mystery when a guest goes missing and the staff claim no knowledge of his stay. (S3 Ep16)
Harts and Palms: When Jennifer overhears a woman arranging to have her husband killed the Harts forgo their Hawaiian holiday and decide to investigate. (S3 Ep15)
Hart of Diamonds: Jennifer has been hypnotised into stealing expensive jewellery, concerned for his wife's strange behaviour Jonathan starts investigating. (S3 Ep14)
My Hart Belongs to Daddy: Jennifer discovers her father has secrets of his own when the military colleagues he shared a dangerous undercover plot with start getting killed off. (S3 Ep13)
The Hartbreak Kid: Jonathan and Jennifer find themselves surrounded by mystery and danger at the race track ahead of their thoroughbred's debut race. (S3 Ep10)
Hart of Darkness: Is Jonathan the victim of vengeful act after he is blinded during a morning swim? Can the Harts unearth a motive for the seemingly unprovoked attack? Ed Harris stars. (S3 Ep9)
Harts Under Glass: Can Jonathan escape with his life after an eccentric art collector becomes obsessed with making Jennifer his ultimate exhibit? (S3 Ep7)
Murder up their Sleeve: A man seeking vengeance against Jonathan conjures up an elaborate plan to take control of Hart Industries. But will he defeat Jonathan once and for all? (S3 Ep6)
What Becomes a Murder Most?: Jonathan fears for Jennifer's safety after fellow models photographed for a high-profile advertising campaign are murdered. (S3 Ep5)
Hartland Express: The Harts investigate the death of an undercover police officer during a train journey between Chicago and Los Angeles. Charlie's Angels star David Doyle guests. (S3 Ep4)
Hart, Line and Sinker: The Harts are embroiled in a murder investigation during a weekend getaway to their mountain retreat. Can they prove whether their caretaker is innocent of murder? (S3 Ep3)
Harts on the Run: Jennifer takes cover in a convent after witnessing a gangland murder, but when the mob discover her hiding place Jonathan must save her before they kill again. (S5 Ep12)
Trust Your Heart: A young girl awakes from a coma seven years after an accident and it's up to the Harts to discover what she's forgotten in this festive episode. (S5Ep11)
Highland Fling: Jennifer discovers she has Scottish blood on a trip to the Highland Games, but her history might be her undoing as she becomes the target of a rival clan. (S5 Ep9)
Long Lost Love: Could the mysterious woman really be Jennifer's half-sister? Her father is convinced she's the result of a war-time love affair but Jonathan is suspicious. (S5ep8)
Passing Chance: A cross-country car rally in Greece becomes a race to save the Hart's lives in this fast-paced episode also starring Burt Kwouk. (S5Ep7)
Harts and Hounds: A hunting trip to England is marred by murder, but the Harts soon become the hunted as they try to track down a killer. Also starring Gordon Jackson. (S5 Ep5)
Pandora has Wings: Jonathan is called up to test the radar on-board a new fighter jet unaware the mission has been rigged to explode by a saboteur. (S5 Ep4)
Hostage Harts: Jennifer fears for Jonathan's life when ruthless jewel thieves take him hostage after he stumbles across a robbery during a business trip to Paris. (S5 Ep3)
Two Harts are Better than One: The Harts take a trip down memory lane to reveal how they first met and fell in love in London in this throwback episode. (S5 Ep1)
A Lighter Hart: It seems guests are just dying to be thinner at a sinister health spa when Jennifer's cousin falls ill after enrolling in their fitness plan. (S4 Ep22)
Too Close To Hart: The Harts believe their plan to expose the art forgers who live next door is a masterpiece - but is there a dangerous flaw in their idea? (S4 Ep21)
Hartstruck: A stalker obsessed with Jonathan will stop at nothing to possess him, even if it means killing Jennifer. Mimi Rogers guest stars. (S4 Ep20)
A Change Of Hart: A female assassin takes Jonathan hostage, and he has to pretend to be Max in order to survive - but can the Harts keep the charade up long enough? (S4 Ep19)
The Wayward Hart: Max leaves on his annual trip, taking an expensive cigar with him. But when the Harts discover the cigar is lethal, they race to track him down. (S4 Ep18)
Bahama Bound Harts: The Harts discover that a famous recluse has been replaced by an imposter to take control of his fortune - but how can they prove it? (S4 Ep16)