Week In Week Out

The programme goes behind the scenes at Arriva Trains Wales as it struggles to deal with the worst overcrowding on commuter trains for years. Reporter Nick Servini investigates how we got into this situation, and what can be done to fix it.

The number of young people killed or seriously injured on the roads in Wales has increased by 15 per cent over the last three years. India Pollock speaks to families in one Valleys community about their fight to change the law after their three sons were killed in a crash in 2015. What more could be done to prevent young deaths? Week In, Week Out investigates.

Week In, Week Out investigates what life is like for families living on Wales's most polluted streets. An estimated 2,000 deaths are caused by air pollution in Wales each year - mostly from traffic on our roads. So are we facing up to what's being called an urgent public health crisis? India Pollock reports.

Week In, Week Out asks if it is time for a radical rethink on how we deal with drugs. A former policeman who is now police commissioner for North Wales believes so. Arfon Jones says drug users should be dealt with mainly by the NHS, not the police. But will it work? The team put his controversial views to the test.

The pressure is on our social services to deliver care to some of the most vulnerable in society. Week In, Week Out investigates the challenges facing those on the front line of a system struggling under the strain. Filming behind the scenes with a Welsh care company, reporter Sian Lloyd uncovers a recruitment crisis which impacts on people needing care in their own homes.

Welsh Coronation Street actor Ian Puleston-Davies talks about his OCD, which he says is much misunderstood. He speaks to fellow sufferers, including a mother and daughter who have agreed to fixed cameras being installed in their home to show the extent to which OCD can take over people's lives.

India Pollock investigates the story of a Welsh council who took a primary school girl into care, and said she'd be safe. But four years into the system, her mother says she's being failed because she's at risk of sexual exploitation, missing school and taking drugs as she moves from one home to another.

Summer's arrived, and many tourists are heading to Wales, but are we getting as many visitors to our coasts, castles and hills as we could? Jane Harvey speaks to hoteliers, tour operators and those running attractions and investigates if Welsh authorities are working with, or holding back one of Wales's fastest-growing industries.

The Welsh capital is one of the UK's fastest growing cities, but Cardiff boy Jason Mohammad asks if his city is expanding too fast. The growth is a mark of Cardiff's success, but with new homes planned, bringing more people, is it developing a transport system quickly enough to cope?

Undercover groups, mostly run by mums and dads, have sprung up to catch online sexual predators. A new one in Wales says it has more than 90 possible targets. As paedophiles are being caught and jailed as a result, the programme examines the tactics used by some hunter groups and speaks to a family caught up in a sting.