Reese protects an NYPD analyst whose investigation into a software glitch has drawn the attention of Samaritan. Also, Reese and Fusco are threatened by an ally of Elias's who is looking to avenge his friend's death.
Dr. Lisa Chimes enlists Dr. Steve Fearnside’s aid to treat Smudge the cat who’s been badly injured after running away. Then, Lisa and Dr. Andrew Marchevsky work to heal Sachi the dog after a fight, but they worry the damage goes deeper than they can see.
Conor Knighton reports on the trend of businesses giving workers 'summer Fridays' off. Ted Koppel goes to San Quentin prison to report on the prison-life podcast 'Ear Hustle.' Serena Altschul visits the David Bowie exhibit at the Brooklyn Museum.
Dylan and Lizzie investigate the murder of a film student whose death was broadcast for the world to see. Also, Andy and Dylan realize that parenting is tougher than they thought when they agree to look after a friend's daughter.
Hondo puts aside his misgivings about Jim Street's recklessness and allows the newbie to go undercover as a broker in a luxury car theft ring to bust a ruthless trafficker. Also, Hondo visits the teenager recently shot by a former member of his SWAT team.
The team investigates a ransomware attack that takes out the entire power grid for west L.A. and paralyzes the city. Also, as the first holiday season since the death of Sam's wife approaches, he struggles to find the best way for his family to celebrate.
When a man who secretly fought crime dressed as a popular comic book superhero is murdered, Holmes and Watson must discover his real identity before they can find his killer. Also, Morland makes a surprise donation to Watson's favourite charity.
In the aftermath of a deadly mine explosion, the team infiltrates the coal mines of West Virginia to put an end to the dangerous practices of the mine's owner. What the team digs up threatens the tight-knit community.