When Henry is invited as a guest speaker at a luxury resort spa, he quickly finds himself at the center of another murder. With Maggie at his side, our favorite duo must not only find the killer but be careful they don't become his latest victim.

After being struck by lightning, CSI investigator Barry Allen awakens from a nine-month coma to discover he has been granted the gift of super speed. Teaming up with S.T.A.R. Labs, Barry takes on the persona of The Flash, the Fastest Man Alive, to protect his city.