Chuck and Sarah must race against time and a ruthless spy Robyn Cunnings, to destroy a dangerous computer virus. Meanwhile, Ellie and Awesome are spending their date night which takes on a dangerous turn and Morgan is sent on a special mission to recover Chuck's P.A.N.T.S.moreless
When the bodies of two women are discovered, the homicides contain the hallmarks of a well-known serial killer, who murders three times, branding his victims in the order they are killed. Now the PHD is up against the clock as the comb the beachfront in order to save another woman's life.
Meanwhile, Brenda learns her preliminary diagnosis, which results in a surprising response from Fritz.