Filmed over four months, this edition of the programme gives a unique perspective on life on the NHS frontline. Dr Saleyha Ahsan filmed her own journey through the second wave of the Covid-19 pandemic, capturing the pressure and personal tragedies she faced with the surge in patients, which included her own father. This special Dispatches film also shows the emotional and physical burden faced by friends and colleagues, and how they came close to breaking point with the psychological toll of fighting to keep people alive.