Complex sentence: Nagged by feelings of inadequacy, Hank becomes obsessed with the Heisenberg case, and overly aggressive on the job, starting a fight with two men in a bar whom he suspects of dealing drugs, only avoiding being disciplined because Gomez covers for him.
Split into simpler sentences: Nagged by feelings of inadequacy, Hank becomes obsessed with the Heisenberg case, and overly aggressive on the job. He starts a fight with two men in a bar whom he suspects of dealing drugs, only avoiding being disciplined because Gomez covers for him.