BULL: What You Need to Know About the Season Premiere

"Labor Days" - As Bull prepares for impending fatherhood at home, his work at TAC suffers without his top attorney, Benny, who quit the company in reaction to Bull's fling with his sister, Isabella (Yara Martinez), at their father's funeral. Meanwhile, the team faces a difficult time in court without Benny as they mount a defense for a young bartender on trial for involuntary manslaughter following an inebriated customer's mass killing, on BULL, Monday, Sept. 23 (10:00-11:00 PM, ET/PT) on the CBS Television Network. Pictured L-R: Yara Martinez as Isabella Col--n and Michael Weatherly as Dr. Jason Bull Photo: David M. Russell/CBS ©2019 CBS Broadcasting Inc. All Rights Reserved.