TV Guide BBC Two Tuesday

The documentary investigates the immediate fallout from the kidnap of John Cantlie and James Foley, as a perilous manhunt was launched by an expert hostage negotiator. But as the country collapsed, Islamic State took hold - and as more journalists joined them in captivity, survival became a desperate struggle

When Britain and the US refuse to negotiate with Islamic State, James Foley pays the ultimate price at the hands of 'Jihadi John''. After the execution is streamed worldwide, John Cantlie reappears in a very different propaganda video. He is alive and apparently reporting on behalf of the extremists, forcing the world to question what side he is on and how far he must go to stay alive

Strictly champion Dianne Buswell joins the team in this celebrity special, helping Owain Wyn Evans with the sale of a south London terrace, while Dion Dublin is in West Yorkshire, where he encounters some worrying-looking mould. Plus, a segment from the archives in which Martin Roberts visits a former chapel in Derbyshire

The team arrive in the Midlands to help dads Craig and Craig, whose home is jam-packed with toys belonging to their beloved five-year-old daughter - not only the ones she plays with now, but everything she has ever owned, which salon owner Big Craig has kept hold of for fear of losing part of her childhood. But as the process begins, Stacey finds more clutter, from almost 200 pairs of shoes to 400 tampons - which Little Craig collected for the homeless but never got round to donating

Zoologist George McGavin explores the world of primates, from strange lemurs and acrobatic monkeys to enigmatic apes. He uncovers the secrets of the primates' success - their survival tactics and physical adaptations - and how their lives mirror those of their human cousins. He begins by meeting an orang-utan that uses soap to improve its personal hygiene, baboons with a taste for flamingos, criminal-minded macaques and fluorescent mandrills that don warpaint before going into battle

Michael Aspel and the team travel to Salford, Greater Manchester, where they cast their eyes over a drawing by local artist LS Lowry, Zulu wedding beads, an American scrimshaw whale's tooth and an album of Victorian photographs

Paul Martin presents from the Royal Marines Museum in Hampshire. Visitors arrive with their antiques and collectables and the experts are on hand to choose the most interesting items to go to auction. Paul Martin finds about the history of the Royal Marines

The comedian visits Romania. Landing in Bucharest, the only place in the country he's heard of, Romesh meets political activist and media expert Angela-Mihaela Serban at the parliament palace, the architectural behemoth built on the command of the communist dictator Nicolai Ceausescu. Failing to warn him about the miles they're about to clock, she takes Rom out of the capital to explore many amazing things that are overlooked in this vast slice of Eastern Europe, and the pair embark on a journey through the country's seemingly endless and varied landscapes

Lord Sugar tasks the candidates with selling products on a TV shopping channel. They must select the products they hope will win over the nation and make them the most profit before taking to the small screen. There's a dramatic showdown in the boardroom and one candidate risks everything to keep their place in the process

Angela Scanlon and guests examine the candidates' performances and analyse the TV Selling task, the boardrooms and the firings. Plus, a chat with the latest person to leave the process

The body of Giles, an eccentric monster hunter, is recovered from the sea. He bears injuries oddly suggestive of the legendary creature he's spent years chasing - the Lusca. Mervin's life is turned upside down by an unexpected visit from his niece Eloise