Magnum and Higgins are shocked when one of her former MI6 teammates shows up with a fresh gunshot wound and news that “the Viper,” the assassin who killed Higgins’ true…

MacGyver and Jack search for Riley, using a microwave and a power strip, after she mysteriously disappears and hacks into the NSA, possibly unleashing World War III. Also, Bozer goes…

NCIS investigates the apparent suicide of a Navy intelligence officer who leapt to his death after taking LSD. Also, while Kensi is away, Deeks makes plans to redo the backyard…