Seth helps Santanico confront Malvado. Meanwhile, Richie andKate must stop Carlos and Scott from overturning the ancientprophecy and taking control of a powerful evil.
It's the Huangs' first Halloween in the suburbs and Louis isdetermined to turn their "dead" street into a prime destinationfor trick-or-treaters. And as Louis, Eddie, Emery, Evan andeven Grandma Huang show off their elaborate costumes, Jessicahas bigger plans - to protect her investment property fromteenage pranksters.
When Barry and the team find out Captain Cold has beenkidnapped, they form an uneasy alliance with his sister,Lisa. However, Barry feels double-crossed when he finds outSnart is working with his father, Lewis Snart on a heist.Meanwhile, Joe is faced with a difficult decision. John.
Guest judge Susan Feniger tests the fish sandwich waters. Thenone chef hits the rodeo on the back of a bucking bronco.Finally, someone gets sent up the river while makingMississippi mud pie.
A police officer's body camera is hacked and the incendiaryvideo goes viral. The team investigates to learn the truth andfind the hacker before the small town where the cop workederupts in unrest.
When Rebecca learns that Josh has a gorgeous yoga instructorgirlfriend named Valencia, she is determined to learneverything about her. Rebecca attempts (unsuccessfully) tolearn yoga, tries (unsuccessfully) to get into the localnightclub Josh and Valencia go to, and finds herself becominga little too obsessed with Valencia.
Members of the firehouse are frustrated with their inability tohelp Chief Boden, whose job is on the line pending an internalinvestigation in the aftermath of a complicated call to a fire.Meanwhile, Lt. Severide struggles to accept his smaller roleand adjusts to the presence of Capt. Patterson, his newcommanding officer. Dawson shakes things up on the work frontand Casey attempts to find a crucial piece of evidence in hisongoing investigation against Nesbitt. Elsewhere, Herrmannstruggles to keep the peace with Molly's newest neighbors.