A man from Orla's past begs for her help: Ben Finnegan is on the run from the police, framed for murder, and being hunted by a killer with a crossbow. The only person Orla can turn to is the last one she ever wants to ask for help - Harry.

The kids search for Leslie and Alien Alex. Meanwhile, Leslie gives birth and Xavin fulfills her prophecy. The kids go head to head in a final battle against the aliens.

A street musician is murdered six different ways and the killer is threatening to strike again, but Monk and his colleagues are forced to the sidelines by obnoxious FBI agents.

After the city's gun buy-back program is robbed, the team is on a hunt for those responsible. Meanwhile, Murtaugh walks on thin ice with Trish, Riggs finds an unlikely friend in Ruthie, and Captain Avery is reunited with a college "frenemy" who has key information about the case.

Dex is hired to investigate a bride's fiancé after suspicions arise regarding the motives behind the hurried nuptials. Dex asks Hoffman for help with the case and discovers there's more to this couple than meets the eye.

An elderly married couple, killed execution-style in their home, with their daughter and grandchildren missing, leaves a joint task force to suppose that they may be hostages.

Intelligence investigates the murder of a basketball player following an anti-police rally and the case gets complicated when Woods' daughter gets involved.

Dr. Lightman and Dr. Foster help FEMA run a rescue operation on a collapsed construction site. Torres and Loker talk to the girlfriend of an internet billionaire.

A man from Orla's past begs for her help: Ben Finnegan is on the run from the police, framed for murder, and being hunted by a killer with a crossbow. The only person Orla can turn to is the last one she ever wants to ask for help - Harry.

Dex is hired to investigate a bride's fiancé after suspicions arise regarding the motives behind the hurried nuptials. Dex asks Hoffman for help with the case and discovers there's more to this couple than meets the eye.

A street musician is murdered six different ways and the killer is threatening to strike again, but Monk and his colleagues are forced to the sidelines by obnoxious FBI agents.

Intelligence investigates the murder of a basketball player following an anti-police rally and the case gets complicated when Woods' daughter gets involved.

Dr. Lightman and Dr. Foster help FEMA run a rescue operation on a collapsed construction site. Torres and Loker talk to the girlfriend of an internet billionaire.

After the city's gun buy-back program is robbed, the team is on a hunt for those responsible. Meanwhile, Murtaugh walks on thin ice with Trish, Riggs finds an unlikely friend in Ruthie, and Captain Avery is reunited with a college "frenemy" who has key information about the case.

The kids find themselves in an alternate dimension full of visions from their past. They must find their parents and Alex before time runs out. One person is left behind.

Harry, Fergus, and Lola are invited to a murder-mystery party in a hotel on a secluded island. The fun quickly turns deadly as they realize a real murderer lurks among them, willing to kill everyone present.

Monk goes to the emergency room with a persistent bloody nose due to a bump on the nose, which he becomes convinced is actually a cerebral hemorrhage, and discovers the doctor he sought out for second opinion, dead on his office floor.

A woman is found dead in a storage container belonging to the actor she was stalking, and Lieutenant Tao works as a consultant for the actor's police drama.

Dr. Lightman's ex-wife shows up, and asks him to tackle an arson case. Torres works the case of a drive by shooting that killed a member of a rapper's entourage.

Dex and Grey venture to Los Angeles to help a client who believes her Hollywood script has been plagiarized by a former classmate. Reluctantly, Grey leaves Ansel and Tookie in charge of The Bad Alibi, and against his wishes, Tookie hosts a birthday party at the bar.

After the fatal end to an argument on a construction site, the squad works to untangle facts about the incident. Meanwhile, Riggs struggles to rekindle his relationship with Molly, Trish's job is on the line as she tries to close a big deal at work, and Murtaugh gets one last chance to make it right at home.

Intelligence tracks down a vigilante killing rapists and Burgess questions whether the men who attacked her sister have really been punished.

Holder is assigned a disturbing case in the third-season premiere.

A woman is found dead in a storage container belonging to the actor she was stalking, and Lieutenant Tao works as a consultant for the actor's police drama.

Dex and Grey venture to Los Angeles to help a client who believes her Hollywood script has been plagiarized by a former classmate. Reluctantly, Grey leaves Ansel and Tookie in charge of The Bad Alibi, and against his wishes, Tookie hosts a birthday party at the bar.

Dr. Lightman's ex-wife shows up, and asks him to tackle an arson case. Torres works the case of a drive by shooting that killed a member of a rapper's entourage.

After the fatal end to an argument on a construction site, the squad works to untangle facts about the incident. Meanwhile, Riggs struggles to rekindle his relationship with Molly, Trish's job is on the line as she tries to close a big deal at work, and Murtaugh gets one last chance to make it right at home.