MacGyver Season 4 Episode 9“Code + Artemis + Nuclear + N3mesis”

CBS · S4E9 · Aired April 10, 2020 · 60 min · ★ 6.7/10

While Mac's friends surround him during his time of grief, Los Angeles' power grid is taken hostage in a ransomware attack resulting in a citywide blackout, and the team discovers the code used was written by Riley years ago.

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