Complex sentence: ABC pledged to air the completed eight episodes, regardless of the strike's resolution, thus making the episode a potential season finale, a situation that was not desired by the production staff, who felt the episode's cliffhanger was unsuitable to end the season.
Split into simpler sentences: ABC pledged to air the completed eight episodes, regardless of the strike's resolution, thus making the episode a potential season finale. This situation that was not desired by the production staff, who felt that the episode's cliffhanger was unsuitable to end the season.