The case of Edward Drinkwater is a sad tale of two brothers who died within hours of each other. It's an unusual situation for the Heir Hunters but they get straight to the task of trying to find living relatives. Winifried Neaves is another name that appears on the unclaimed estates list and the hunters make swift work of building up her family tree and finding heirs. But then, out of the blue, a will is found.

Avid cricket fan Cecil Walton died in Durham in 2010 leaving no will. It's now up to the heir hunters to find relatives who can inherit his estimated 100,000 pound estate. The Heir Hunters also look at the case of Gustav Sturm a German who came to Britain as a prisoner of war and never left. Gustav's family knew little of how he had been forced to fight for the German army in some of the bloodiest battles of the second world war. Plus, details of three unsolved cases.

The team looks into the estate of Edward Luckarift who died in North Wales and, during the 1960s, worked as a scriptwriter on the BBC programme That Was The Week That Was. Diana Paine was the daughter of a car salesman and when the Second World War broke out she was one of the thousands of women who joined the war effort, becoming a driver for the Kent fire service.

Motorcycle enthusiast Ian Milner died in 2010 and it's up to the heir hunters to try and find living relatives. Their search takes them to Bradford and they are in a race against competing firms. The team also looks at the estate of Ruth Sedgbeer who came from a family of Scottish sheep farmers that were part of a pioneering Victorian experiment aimed at turning Exmoor into farmland.

The estate of David Hugh Roberts, worth 2 million pounds, had eluded the heir hunters for five years. He died a recluse in a flat near Wimbledon and the team has tried unsuccessfully to find living relatives. Now though there is fresh hope as new records are available. Penny Belchambers died in a 600,000 pound flat in Kensington. The search for her heirs uncovers the tale of Polish war pilot Witold Lanowski who flew with the RAF during the Second World War.

The heir hunters investigate the case of Mary Glanfield but struggle to establish whether there is any value in the estate. The team also looks at the estate of Jamaican-born Keith Saunders who came to Britain in the 1950s.

Margaret Porter passed away in June 2008. A shy and reclusive woman, she had withdrawn herself from society when her wartime sweetheart and husband of 50 years had died a few years earlier. As the Fraser and Fraser team start to delve deeper into her story, they uncover both a reasonable legacy and a mystery they'll need to solve if they are to make any headway. The race is on to the crack the case before their competitors, but who will get to the finishing line first? Meanwhile Heir Hunters company, Hoopers, are stumped by the case of Claire Hunt. This love story sees the team chasing their own tails in an attempt to find any living relatives. But, with the case being worth more than 100,000 pounds, they can't afford to give up too easily.

Margaret Mooney died in East London in July 2009, aged 88. She had dedicated her life to charity work and when she passed away she left behind her a fortune in excess of 200,000 pounds. As she didn't leave a will it is now down to Fraser and Frasers to track down any living family relatives. The investigation sets Case Manager Tony Pledger's head in a spin as the family tree grows and grows. Celtic Research uncover one of their youngest heirs to date. Olive Sonntag died in 2008 in a care home on the Isle of Wight, aged 84. She left behind an estate worth an estimated 130,000 pounds, but no will. This case sees the team of heir hunters inspired to go on a journey eventually leading them to Liverpool and Olive's great niece - a 20 year old tattoo artist.

This episode shows how lightning really does strike twice as the heir hunters uncover an amazing coincidence when they investigate the case of old school gent, Douglas Greatrex. He died in Birmingham in August 2009 not far from where he had lived for most of his life. As the team get to work tracking down his blood relatives, of which there are many, they come across one who makes them do a double take. They realise they have been here before and only eight months earlier. Meanwhile heir hunters from Celtic Research are looking into the case of Polish soldier, Tadeusz Gaweda, who passed away in 1991 in Forest Hill, South London. His case had remained unsolved for many years until Hector Birchwood from Celtic decided to take it on. After making some headway it isn't long before Hector's back up against a brick wall.

Marjorie Chapman died in a nursing home but tragically the heir hunters learn she lost all three of her children and it's not long before the shocking truth about their deaths emerges. The team also look at one of their largest-ever cases. Michael Moran died in England but was from an enormous Irish family who ended up spread around the world.

Grace Woods died in Oxford aged 89 leaving an estate worth 150,000 pounds. The heir hunters are stunned to learn that Grace was Britain's first bona fide supermodel and in 1946 led a troupe of Britain's finest models on a glamorous trip to New York. The heir hunters also look at the case of Leons Grinbergs, a Latvian who was forced from his homeland by the bloody battle between the Germans and the Russians.

Barbara Page died aged 80, leaving behind an estate worth 100,000 pounds. The heir hunters manage to trace Barbara's family quickly but it's a competition between them and rival firms. The team also look at the case of George Ardley, a farmer who died in 2009 leaving 160,000 pounds and a herd of cows. The search for George's family uncovers relatives he never knew he had.