The sixth season consisted of 26 half-hours of material, divided into 22 half-hour episodes and two hour-long episodes.

Brenda proves to be a contradiction in terms. She is socially absentminded at times; she has an addiction to junk food; her quirks can be annoying; and she can be a spitfire when the time calls for it. But, to the surprise of her team, she is also very adept, sharp, observant, and is a "closer" someone who can get the confessions and the convictions.

A smarmy lawyer whose education is deemed void by the bar is forced to attend a local community college with an extremely eclectic staff and student body.

The murder of an identity thief reveals new information about Boston's shady past, and the investigation prompts Maura to take on a personal quest Frankie Jr. tries to attract new clients that could use his father's help.

A drama centered on the personal and professional lives of five surgical interns and their supervisors.

Amy and Anne think that George is being unfaithful again. Meanwhile, Amy goes out with Ricky; and Grace and Grant prepare for camp.

Terrorist Ramzi Yousef smuggles a bomb aboard Philippine Airlines Flight 434 on the first leg of its flight. On the final leg of the journey to Tokyo the bomb explodes, killing a passenger and damaging the aircraft's control systems. The pilot makes a successful emergency landing in Okinawa. The larger plot to bring down as many as a dozen aircraft is foiled.

The Iran–Iraq War is raging in the Persian Gulf region. The USS Vincennes is a highly advanced cruiser, capable of identifying and destroying aircraft with pinpoint accuracy. But when Iran Air Flight 655 crosses the Gulf, the crew of the Vincennes, despite its high-tech equipment, mistake the airliner for an F-14 Tomcat fighter jet and launch a missile, shooting it down and killing all on board.

A subterranean infrastructure of sewers, telecommunications, electricity, and water keeps every modern city alive -- and is taken for granted until something goes wrong. On April 22, 1992, in Mexico, something went very wrong.