In this Special Edition of the programme, we are looking back at some of the best report from our network of correspondents around the world. I am a heroin addict. I have overdosed four times. My sister saved me. Americas addiction. The epidemic of heroin and painkillers creating a new generation of users and killing Tens Of Thousands of people. The drug they called the devil has hit hardest in smalltown america, taking hold in areas like this that have already been ravaged by years of economic decline. We are hearing outgoing fire. The troops are trying to gauge how much resistance is in these villages. We join the Kurdish Forces on the frontline of the Battle For Mosul as the iraqi city waits for deliverance from so called Islamic State. Also, before and after. Fergus walsh reports on the pioneering surgery without couples that has queue with this mans tremors. I am in antarctica following a team of scientists setting up remote cameras in penguin colonies. And a year in the life of t