Complex sentence: The Brennan family was expanded again following the introduction of the brothers' father Russell (Russell Kiefel) in August 2015, and the family became the centre of "a controversial" domestic violence storyline.
Split into simpler sentences: The Brennan family was expanded again following the introduction of the Brennan brothers' father Russell (Russell Kiefel) in August 2015. The family became the centre of "a controversial" domestic violence storyline.