Greenland

"John Garrity, his estranged wife and their young son embark on a
perilous journey to find sanctuary as a planet-killing comet
hurtles toward Earth. Amid terrifying accounts of cities getting
levelled, the Garrity's experience the best and worst in
humanity. As the countdown to the global apocalypse approaches
zero, their incredible trek culminates in a desperate and
last-minute flight to a possible safe haven."