Dr Jason Bull is the charming and cocky founder of successful trial consulting firm Trial Analysis Corporation, where he and his team of experts employ psychology, human intuition and high-tech data to understand jurors, lawyers, witnesses and defendants, and construct effective narratives to help their clients win. Bull's team include his brother-in-law Benny, neurolinguistics expert Marissa, former detective Danny, hacker Cable, and Chunk, who helps perfect clients' appearances for trial. `Bull' is inspired by the early career of Dr Phil McGraw, who also serves as an executive producer.
Following his heart attack, Bull represents an insurance company being sued by a dying mother for denying coverage of her liver transplant.
Bull finds himself on the opposite side of voir dire, when he serves jury duty while simultaneously mounting a defense for a woman on trial for killing her daughter's murderer.
A female police officer shoots a man who looks like he's going for her gun, prompting a $25 million lawsuit against the city. Bull works to clear her name.
Business becomes personal for Bull when TAC assists with a civil suit against the bank that funded the terrorists responsible for Cable's death.
Bull defends a doctor charged with murder after a DNA database match, as the team hunts for possible DNA contamination and selects jurors who trust instinct over hard evidence.
Bull and the TAC team defend Marissa's husband, Greg, after he's charged with involuntary manslaughter when an employee dies in a kitchen fire blamed on alleged negligence.
Bull faces guilt over quitting psychiatry when a former patient is tried for killing her brother, as the team pursues an insanity plea and seeks jurors sympathetic to mental illness.
Bull takes on a pro bono client who was poorly advised by his public defender to plead guilty to a misdemeanor, and now faces felony manslaughter after the victim dies.
Danny seeks her team's help when her boyfriend is arrested for being in the country illegally, while Bull represents a German national being sued by a museum over a valuable painting.
Bull defends a priest charged in a fatal hit-and-run after he's found behind the wheel. But the case complicates when he says the real driver has confessed, but he can't break confidentiality.
Bull and his romantic rival join forces, when her niece and husband are charged with armed robbery.
Bull defends NYC's chief medical examiner Julia Martin after she's charged with evidence tampering in the case that made her career, selling to the Jury that she may have simply made a mistake.
Bull's new relationship with Diana is complicated by his renewed feelings for his ex-wife, Isabella, when they're reunited by the sudden death of her and Benny's father.
Bull aims to raise reasonable doubt among the jurors when his friend Nathan is tried for his wife's murder.
Bull works alongside his idol, legendary lawyer Walter Franklin, to help a family sue the U.S. government over the wrongful death of a man killed while in witness protection.
The team tackles two linked cases as Chunk defends a young man charged with federal counterfeiting, while Bull represents his grandfather, who risks losing his barbershop to the FBI.
Bull defends a teen raised in isolation who goes on trial for murder after a deadly shootout, seeking jurors who believe he acted under the warped influence of his survivalist father.
Bull's romantic rival, Diana, jeopardises her career when she secretly has Bull come to Texas to assist a couple fighting against her former client for custody of their grandchildren.
Danny enlists Bull's help for the assault trial of her former FBI mentor, a bounty hunter who kidnapped the wrong mark during his first assignment.
Bull defends a medical student who tried to prevent his brother from murdering a judge in order to cause a mistrial for their crime boss father.
Bull defends Taylor's brother-in-law, a prison guard charged with manslaughter after two inmates drown during a hurricane, arguing he acted to prevent a greater harm.
Bull defends a step-mum accused of murdering her step-daughter, Marissa shares her decision about having a baby with her husband, and Izzy shocks Bull with her own news.