Complex sentence: Meanwhile, LAPD Chief Jerry Karlin (Baker) gets wind of Fletch's soon-to-be-published drug article and meets with him, saying the article will jeopardize his undercover operation on the beach.
Split into simpler sentences: Meanwhile, LAPD Chief Jerry Karlin (Baker) gets wind of Fletch's soon-to-be-published drug article. He warns Fletch that the article will jeopardize his undercover operation on the beach.