Complex sentence: Meanwhile, Officer Cheets and Officer Hamm approach Big Al for directions to where Beary went, and because Big Al does not mention that Beary is friends with them and has joined them, the officers think that the bears have kidnapped Beary.
Split into simpler sentences: Meanwhile, Officer Cheets and Officer Hamm approach Big Al for directions to where Beary went. Because Big Al does not mention that Beary is friends with them and has joined them, the officers think that the bears have kidnapped Beary.