A sinking boat pushes a sailor into an extreme case of hypothermia. An air crew braves icy conditions to save a severely injured brother in arms. When an enormous oil rig threatens to run aground, multiple choppers are called in to evacuate 18 people.

A sinking boat pushes a sailor into an extreme case of hypothermia. An air crew braves icy conditions to save a severely injured brother in arms. When an enormous oil rig threatens to run aground, multiple choppers are called in to evacuate 18 people.