The Flash airs at 8pm EST, with Legends of Tomorrow at 9pm EST.
The FlashÂ "Mixed Signals" description:
Barry (Grant Gustin) has his hands full when he takes on a dangerous meta (guest star Dominic Burgess) who can control technology, while also confronting an obstacle in his personal life: the ramifications of abandoning Iris (Candice Patton) for six months to balance the Speed Force. Meanwhile, Gypsy (guest star Jessica Camacho) breaches in for a hot date with Cisco (Carlos Valdes), but she gets annoyed when his work keeps them apart. Alexandra La Roche directed the episode written by Jonathan Butler & Gabriel Garza (#402). Original airdate 10/17/2017.
DC's Legends of TomorrowÂ "Freak Show" description:
The Legends find themselves in 1870 to fix the anachronism which happens to be at P.T. Barnumâ€™s fledgling circus. However, Nate (Nick Zano) and Ray (Brandon Routh) accidently free a saber toothed tiger, creating a bigger problem. Meanwhile, P.T. Barnum (guest star Billy Zane) is on the hunt to capture Nate and Ray to make his show even more exciting for the crowd. Caity Lotz, Maisie Richardson-Sellers, Victor Garber, Dominic Purcell and Franz Drameh also star. Keith Tancharoen directed the episode written by Keto Shimizu & Grainne Godfree (#302). Original airdate 10/17/2017.