Bull and his on-again, off-again romantic rival, Diana Lindsay, join forces to create two separate but collaborative defense teams when Diana's niece and her husband are charged with armed robbery. As the trial gets underway, Bull's reunion with Diana is strained by his new post-heart attack regimen.

The TAC team works tandem cases when Chunk represents his first legal client, Darius Lambert, a young man facing federal counterfeiting charges, and Bull represents Darius’ grandfather, Willie Lambert, who may lose his business to the FBI for owning the barbershop where the fake goods were sold.