Complex sentence: Each episode followed the same pattern: the four main characters solving an unrealistic crime, their involvement being instigated when approached by an attractive young woman who came to them for aid and who would serve as the episode's love interest for one of the of four.
Split into simpler sentences: Each episode followed the same pattern: the four main characters solving an unrealistic crime, their involvement being instigated when approached by an attractive young woman who came to them for aid. She would serve as the episode's love interest for one of the of four.