Unknown giant awakens beneath the polar ice

A radio operator at an Antarctic research station picks up a transmission that makes her yank off her headphones. She runs to the window. On the ice shelf a mile away, something enormous is pushing up from below, cracking the surface in a perfect circle. The horizon tilts as the shelf begins to calve. VFX: ice fracture radial simulation, subsurface pressure displacement, blizzard particle system, emergency red light strobing inside the station. Aesthetic: Whiteout white and deep station red, John Carpenter isolation palette, small human enormous threat, the ice as a lid being lifted from underneath, cold light, colder dread.