As a young man, Mohammed, AKA MFA Zaman, arrived in Britain from Bangladesh with a working visa, a patron and a job lined up as a chef. On arrival though, the promises of a bright future turned to ashes when he became a victim of modern slavery. But at this lowest of low ebbs in his life, Mohammed decided that he needed to do something - and that something was to volunteer at an old people's community club in Lewisham, near where he was living.

Mohammed tells Dr Sian Williams how this life-changing decision helped him to find freedom.

Producer: Tom Alban