Rick Zahn

The gang uses unorthodox measures to save the bar from an overzealous business neighbour; Dennis and Dee's mother returns to town and makes Frank's life miserable.

Gormley attempts to find an ex-NYPD detective he suspects may be a threat to Frank's safety; Erin deals with office politics when she decides to reopen a closed case.

Frank cleans up so he can help out his old company with one last big merger; an unwritten rule of the bar gets the rest of the gang caught up in a case of mistaken identity.

The surgeon who saved Bull's life after his heart attack is sued for malpractice; Taylor fights the urge to check into the background of Henri Fray, Marissa's new love interest.

Hanks examines a teenage music prodigy; Evan overhears a private conversation and gets into trouble with Paige's father.

Jack seeks a name for a new mini-microwave that the legal department will allow. Meanwhile, Liz can't find a way out of jury duty and is forced to leave the staff unsupervised.