Bull helps a grieving mother sue the developers of a computer program that misidentified her son as a criminal, leading him to be fatally shot by the police. Also, Bull and Marissa clash when she considers a job offer from a rival company.

The TAC team finds itself in a tense and unprecedented situation when Bull faces off against Marissa and her new boss in court, following her departure from the company. Also, Taylor's professional life works against her during her custody battle with her ex-husband.