Sam and team search for a link between two very different murder victims who bear the same signs of torture. What they find leaves them shaken.

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The simultaneous death of three heart patients who share the same implant spurs a hunt for a medical hacker and puts someone close to the team on edge.

After a drone attack on a power plant plunges the city into darkness, Billie and Sam discover it's just the first step in an alarming master plan.

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While investigating an unsettling murder at an apartment used by S&M aficionados, Sam becomes obsessed with daughter Emmy's new boyfriend.

The kidnapping of an industrial tycoon leads to disturbing revelations about his company -- and an online "trial" to decide his fate.

After a scientist is found dead in her self-driving car, Billie and Sam head to her nanotech lab and discover she was no stranger to controversy.

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When two well-known drug traffickers turn up dead, all the evidence points to Bob. But Sam refuses to believe his colleague is a killer.

When a hidden camera in the woods captures the slaying of a hacker known for exposing corruption, Billie tries to conceal her link to the victim.

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On his first day back from leave, widowed cop Sam is called to the scene of a young woman's murder, where he clashes with rookie tech whiz Billie.

A graphic assassination video posted online leads the team to a network of ISIS recruiters in a case that strikes a nerve for Nassim.

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