"The Barrier" -- The team races to stop the hybrids from breaching the barrier wall by shutting down the last beacon that draws them in, on the third season finale of ZOO, Thursday, Sept. 21 (10:00-11:00 PM, ET/PT) on the CBS Television Network. Pictured (L-R) Alyssa Diaz (Dariela Marzan), Josh Salatin (Logan) and Billy Burke (Mitch Morgan) Photo: Eduardo Araquel /CBSÃÂ©2017 CBS Broadcasting, Inc. All Rights Reserved | Episode 3.13 - The Barrier (Season Finale) | Promotional Episode Photos | Season 3 | Zoo | Gallery

SpoilerTV Image Archive | Gallery | Zoo | Season 3 | Promotional Episode Photos | Episode 3.13 - The Barrier (Season Finale) | "The Barrier" -- The team races to stop the hybrids from breaching the barrier wall by shutting down the last beacon that draws them in, on the third season finale of ZOO, Thursday, Sept. 21 (10:00-11:00 PM, ET/PT) on the CBS Television Network. Pictured (L-R) Alyssa Diaz (Dariela Marzan), Josh Salatin (Logan) and Billy Burke (Mitch Morgan) Photo: Eduardo Araquel /CBSÃÂ©2017 CBS Broadcasting, Inc. All Rights Reserved

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