Complex sentence: With Haden locked in the brig and the winter storm near, Stetko and Pryce search for the canisters but things take a turn when Haden escapes as the storm, a "Whiteout", hits.
Split into simpler sentences: With Haden locked in the brig and the winter storm near, Stetko and Pryce search for the canisters. Unfortunately, Haden escapes as the storm, a "Whiteout", hits.