yuriy kuznetzov will be battling vladimir putin's madness for years.e attacked. now heroism is a virtue that must endure. his city was liberated, but dr. kuznetzov sees victims every week or so, civilians who step on one of the millions of russian land mines across about one-third of ukraine. there's a massive effort to clear the mines, but that will take a generation or more. until then, there will be dr. kuznetzov with healing hands and eyes that have seen too much. >> half his life he's devoted to central hospital, and here in its basement with putin's bombs overhead, all he'd become in 52 years was laid down in service to his home. >> translator: we didn't imagine until the end that russia would attack our country. when you're sitting in a basement at night and a plane is flying over you, it was impossible to predict whether you would wake up to see another day. >> in 2022, the basement became dr. kuznetzov's operating room. that's him dressed in white. the wounded were endless. a close friend's wife he could not save, and this man, who was shot an