Zoo star Nonso Anozie RTX1JN3W
Cast member Nonso Anozie poses at a cocktail party hosted by Vanity Fair and Spike TV to celebrate Spike's new event series “Tut,” at Chateau Marmont in West Hollywood, California, July 8, 2015. REUTERS/Danny Moloshok

The "Zoo" series cast, which includes Nonso Anozie as Abraham Kenyatta, James Wolk as Jackson Oz, Kristen Connolly as Jamie Campbell, Alyssa Diaz as Dariela Marzan, Josh Salatin as Logan, Gracie Dzienny as Clementine Lewis and Billy Burke as Dr. Mitch Morgan, will have an upcoming episode titled "Welcome to the Terra Dome," which airs on July 20 on CBS. It will show Abraham and Dariela working with the team to stop the hybrids from hurting more people. Read on to learn more about it.

Spoiler alert: This update contains more 'Zoo' spoilers. Read on only if you want to know more about what happens in 'Welcome to the Terra Dome.'

"Zoo" season 3, episode 4 will show Abraham and Dariela's reunion with the team. According to a CBS press release, they will help stop the hybrids from taking over New York City. This episode was written by Geoff Tock and Gregory Weidman. It was directed by Greg Beeman.

A preview video of the episode was uploaded on televisionpromosdb's YouTube channel. It shows the team working hard to stop the new hybrids from harming more people.

'Welcome to the Terra Dome' guest stars

The actors and actresses that will appear as guests in this episode include Phillip Glenn Reed (Cook), Sarah Hayward (Waitress), Michael Meneer (Jack Jenklow), Matthew Hiebert (Dead Cop), Jennifer Cheon (Erika), Shanae Tomasevich (Paula), Nneka Croal (Rachel) and Kam Kozak (NYC Cop). They will be joined by other stars including Athena Karkanis (Abigail), Marc Gaudet (Thomas), Jason Cermak (Sgt. Mansdale), Sophina Brown (Leanne Ducovney), Lee Majdoub (Tad Larson) and Todd Thomson (Cal).

'Zoo' episodes: 'Ten Years Gone,' 'Drop it Like it's Hot,' 'Oz is Oz' and 'Wham, Bam, Thank You Sam'

The episode before "Welcome to the Terra Dome" was "Ten Years Gone," which aired on CBS on July 13. It was written by Shintaro Shimosawa and Jay Faerber. Ed Ornelas directed the episode which featured Tessa (Hilary Jardine), Jackson and Logan's hunt for Abigail (Athena Karkanis). Plus, new hybrids appeared. Elsewhere, Dariela and Abraham looked for their missing son. They also struck a deal with Reiden Global for personal reasons. Meanwhile, Clementine and Jamie performed risky surgery on Mitch.

The "Zoo" TV series Season 3 airs in the US at 10-11 pm EST on Thursdays at CBS. After "Welcome to the Terra Dome," the episodes titled "Drop It Like It's Hot" (air date: July 27), "Oz is Oz" (air date: Aug. 3) and "Wham, Bam, Thank You Sam" (air date: Aug. 10) will be aired. Stay tuned for more updates about the show in the coming weeks.

In case you missed it (ICYMI), read this:

'Zoo' Season 3 episode 3 spoilers: Clementine and Jamie perform surgery on Mitch in 'Ten Years Gone' [VIDEO]

'Zoo' Season 3 episode 2 spoilers: Mitch is questioned by a strange woman in 'Diaspora'