CEO Mark Goldring is the man at the top of one of Britain's best known and biggest charities. Awarded a CBE for his life's work tackling poverty, he's responsible for Oxfam's balance sheet. But with income down by £18 million in a year, Mark's worried the charity is over stretched. Mark goes undercover to investigate whether Oxfam is raising the maximum amount of money possible and spending it wisely. While undercover in the UK, he's surprised to discover flaws in the fundraising operation that could be costing millions, and is shocked that his British staff are fearful for their jobs. When he travels across the world to a frontline disaster zone, he's frustrated by the dangerous conditions his employees are working in and wrestles with how to balance the tyhpoon victims' needs, his staff's wellbeing and Oxfam's finances.

After years in the boardroom, Geoff Zeidler of Securitas goes undercover, to be blown away by the sacrifices his security officers make and the violence and racial abuse they encounter through just doing their job. Private security company boss Geoff Zeidler of Securitas spearheaded a risky takeover of two rival firms just as the worldwide recession took hold. Securitas's global profits are down by a staggering £65 million and he's now responsible for 12,000 officers that the company didn't originally recruit. So Geoff's gone undercover to find out if his new officers are of the high caliber the customers expect. Geoff is shocked by how much pressure his new staff are under, and amazed by the personal sacrifices the security officers make. After witnessing the violence his officers tackle and the racial abuse they endure, Geoff's forced to consider whether Securitas has more to worry about than just the bottom line.

Paul Fisher is the boss of Jockey Club Racecourses, the largest and most successful organisation in the competitive world of British horseracing. He'll pose as Richard Setter, a new casual employee, who is trying out entry level jobs in the world of horse racing to find out how his company works from the bottom up. Strong language

The co-owner of nationwide retailer Pets Corner goes undercover in his own business to see if a potentially risky multi-million pound investment to grow the business is likely to succeed. Steve Charman is responsible for over 450 staff and a turnover in excess of £30 million. He is going undercover to investigate the company's operations before they change strategy for the future. As he battles to keep his identity secret, Steve investigates whether there is disorder in the shops, if sales staff are struggling, and how suppliers are paid. Confronting whether there are problems within the organisation that cannot be ignored, he questions whether his expansion plan can succeed.

Gunnar Blomdahl, CEO of one of the UK's biggest ferry companies, Stena Line, goes undercover on some of his own fleet of ships to find out if the business is delivering its promise of convenient, efficient and relaxing travel. Stena has recently invested over one billion pounds in increasing the look and size of its operation, but Gunnar is worried that standards have slipped. What he discovers undercover shocks him - paying customers onboard a building site at sea, sub-standard customer service, and flawed design on a brand new superferry. When he meets foreign crew earning less than the UK minimum wage and staff dealing with the uncertainty of seasonal contracts he faces difficult moral questions, and is moved by a Filipino crew member coming to terms with the death of his daughter while working away from his family. When Gunnar returns to head office he's determined to make changes.

Harry Ramsden's new CEO Marija Simovic goes undercover to find out more about the fish and chip chain, and to see how her company's fortunes might be turned around

Chief Operating Officer Kevin McCullough goes undercover at npower, one of the UK's top utility companies. Npower is capable of generating up to 15% of the UK's power at any one time. But earlier this year, Which? magazine reported that just 27% of the company's customers said they were satisfied with the service. Kevin McCullough is responsible for over 8000 npower employees. A local lad done good, 45-year-old Kevin grew up in Yorkshire and started his career in 1984, shovelling coal at the plant. After all the bad press, Kevin admits that because `the company made me everything that I am today, when people criticise the hard work our employees put in - it hurts.' Undercover Kevin sees for himself what his employees have to put up with, working a spell on the busy customer service team. There's a mountain to climb to gain back the respect of customers and staff; will Kevin's spell undercover go any way to turning the business around?

Chief Executive Simon Kossoff goes undercover as his restaurant chain Carluccio's plans to double in size in five years. He's planning to spend £50 million and is keen to expose problems that could jeopardise successful growth. After scrubbing dishes and being run off his feet, Simon is shocked to discover branches struggling with chaotic kitchens, inefficient systems and demotivated staff, and is forced to consider whether Carluccio's should worry more about existing employees than expansion.

Former celebrity hairdresser Jacqui McIntosh, now a senior manager of The Francesco Group, is on a mission to find out why the company's profits are down

Pam Finnis, managing director of one of Britain's biggest care home firms, goes undercover to investigate standards of care. The private care home industry has been plagued with problems. In 2011, scandal-hit Southern Cross - then Britain's biggest care home operator - collapsed under £50 million of debt. HC-One stepped in and took over a third of the homes. They now care for more than 10,000 people across 241 UK care homes, and the woman in charge of the day-to-day running of the company is Pam. Ex-nurse Pam finds going back to the floor tougher than she imagined. She discovers one home is in need of urgent refurbishment; she breaks down when she hears how her staff struggle to survive on their low wages; and she's upset to discover overstretched night shift staff unable to respond immediately to residents' calls for help. But Pam's also inspired by dedicated employees, some of whom choose to work on their days off in order to spend more time with residents.

Senior director Bims Alalade investigates how a recent funding crisis is affecting the largest and oldest youth charity in the world. How have massive budget cuts of up to 80% impacted the organisation and the brand. Bims is worried that the YMCAs might be struggling to help youngsters in crisis. And once on the frontline, she's faced with the stark reality of sweeping cuts. She's appalled by facilities at breaking point, and shocked to find staff facing abuse. And when a young former resident of one of the housing projects breaks down in front of her it proves an unsettling experience.

With government funding down and competition increasing, pharmacy chain Rowlands has seen its turnover drop by £20 million. In a bid to differentiate his business from rivals and win new customers, managing director Kenny Black wants his 510 dispensaries to offer free health advice and excellent customer service. When Kenny goes undercover, there's a bitter pill to swallow: he discovers life-saving medicines out of stock and staff over-worked and under-appreciated. When a dedicated delivery driver is moved to tears by the job, Kenny's forced to consider if he has more to worry about than the bottom line.

The Blue Cross, one of the UK's leading animal welfare charities, undergoes the Undercover Boss treatment as Kim Hamilton takes a turn cleaning dog kennels and helping cats give birth. Having previously spent over 20 years climbing the ranks in banking Kim Hamilton now uses her business skills in the charitable sector. But ditching her suits for scrubs requires a different skill set, and hiding her identity from the staff and volunteers, who are the backbone of the charity, is even tougher. Can she pose as a volunteer without being unmasked, and what lessons will she learn that could shape the future of the charity?

Company director William Reeve goes undercover on the shop floor of multi million pound gaming business Paddy Power and unearths some shocking problems behind the scenes