Dick gets jury duty for the first time and struggles to deliver a guilty verdict for a clearly guilty man. Meanwhile, Sally, much to Officer Don's distress, falls for a cockney 'artist' called Seth, and makes herself over to look and sound just like him. Elsewhere, Harry and Tommy volunteer themselves for Mary's class project - they must communicate without words for five days.

Sally has a new boyfriend and Dick has a new friend: Don. Meanwhile, Harry goes to school.