Gabriel is arrested for being in the country illegally and threatened with deportation. Also, Bull represents a German national who is being sued by a museum over possession of a valuable painting.

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.