Complex sentence: In another plot twist Frank hardy and Nancy Drew find themselves stranded in an abandoned cabin, alone together, they no longer can ignore their attraction to each other, and they kiss, unfortunately once they get rescued, they both feel it was a mistake.
Split into simpler sentences: In another plot twist Frank Hardy and Nancy Drew find themselves stranded in an abandoned cabin. After spending time alone together, they kiss; however, once they get rescued, they both feel it was a mistake.