Complex sentence: He realizes that he is next, and hides out in a fortified cabin, where he recalls switching seats with two girls in his premonition, meaning Clear is actually next, and rushes to save her while being chased by agents.
Split into simpler sentences: He realizes that he is next, and hides out in a fortified cabin. Alex recalls switching seats with two girls in his premonition, meaning Clear is actually next, and rushes to save her while being chased by agents.