What would you do if you were stranded in the coldest place on Earth as the world you knew back home changed forever? David Knoff had embarked on the adventure of a lifetime as station leader of Davis research station in Antarctica when the COVID-19 pandemic hit. After their ride home was cancelled indefinitely, what was supposed to be a routine mission became a high-pressure cauldron of uncertainty and anxiety that pushed David's team of 24 expeditioners to their mental limits. Facing unprecedented challenges, including a complex medical evacuation and a fire on board the ship meant to get them out, David would need every ounce of resilience he'd gained as an infantry platoon commander and diplomat to keep the team safe and get them home. 537 Days of Winter is a high-octane, sub-zero story unlike any other in modern Antarctic history.