UPDATED 07/01/2018 — Episode title revealed as 'Home.' — TheVPN released a synopsis for the fifth and final season that revealed it takes place ten years after the end of Season 4. The 'Watchtower' showrunner told VSGuide specifically that the episode opens in Star City, in the year 2028. — While the present day storyline focuses on Chloe (Allison Mack) finding her way back to Gotham and a catalyst that forces her to stay there for the season, a flashback story set between Smallville and Watchtower will tell the story of how Chloe ended up in Gotham in the first place. — Two former series regular cast members will return in this episode as special guest stars. — The episode features a funeral for a major character.
UPDATED 04/02/2018 — Vera Farmiga guest stars as 'Sarah Essen.' This will be her first episode of the season. — An iconic DC Comics Batman villain will make their first appearance in this episode. It is believed they will play a major role in the upcoming season as one of the season's main antagonists. — The flashback story in this episode will center around Gordon (Dylan Walsh) in his last year as the Mayor of Gotham.
UPDATED 29/01/2018 — Episode title revealed as 'Compromised.' — This episode marks the first appearance of Lucius Fox (Charles Michael Davis), who did not appear in the season premiere. — Chloe (Allison Mack) learns about the serious threats Gotham is facing. — Producers told VSGuide that "a lot has happened in ten years, and returning to these characters after that much time puts a question mark on everyone's head. While we get a taste of where everyone's at in the season opener, it's in [episode two] where we'll learn who we can still trust."
UPDATED 28/03/2018 - Kristin Kreuk returns as Lana Lang in this episode. She is expected to appear in at least two scenes - one of which is shared alongside Justin Hartley. Producers have revealed that the character has an interesting career ten years in the future...
UPDATED 25/02/2018 — Episode title revealed as 'Martyr.' — Producers revealed that the third episode of the season will be a big one for the character of Archer Sullivan-Queen (Jace Norman), who will have his own important journey and story to tell in the final season. "There's always some type of catalyst that triggers a hero's journey, and [episode three] offers that to Archer." — A series of flashbacks will tell the story of why Chloe (Allison Mack) has kept her past as Watchtower a secret from Archer, and explore her hesitancy to have Oliver (Justin Hartley) train him. — Archer will have his own version of the "wall of weird."
UPDATED 06/08/2018 — Episode title posted. — This episode will reveal the identity of a "key player" in the Court of Owls. — A flashback story will focus on the character of Julie Madison (Darby Stanchfield) as she takes on a low-level criminal in court in an effort to build a case against the city's biggest crime lord. It's set in the year 2018, and is expected to feature a glimpse into what Batman's (Christian Bale) world, and the city of Gotham itself, looked like two years after the defeat of Maxwell Lord and the departure of Chloe (Allison Mack) as the city's eye in the sky. — Lucius (Charles Michael Davis) discovers something shocking that changes his life forever.
UPDATED 12/02/2019 - Episode title revealed as 'Chasm.' - While previous episodes have contained a "flashback story," this will be the first episode of the season that doesn't offer a cohesive story in the past but rather it will contain multiple flashbacks relevant to specific characters and their stories. - "This episode really examines our characters at a critical point in the story where the events taking place in Gotham have divided them to a point where they all have different goals, and different means of fulfilling them," series creator Jack Malone told VSGuide, "While their individual paths may cross and align with others, everyone is really confronted with a specific choice to make by the end of the episode and that's where things may diverge." - The Court of Owls have a life-changing offer for one of the main characters.
UPDATED 29/03/2019 - Episode title revealed as 'Outcast.' - A flashback story will examine a game-changing event in Oliver's (Justin Hartley) life set between his departure for Star City at the end of Season 4, and the two-year flash-forward. At this point in time, Oliver is running a smooth operation as Green Arrow, beloved by the city, and surrounded by a team of heroes united in their quest to keep Star City safe against a new, prominent threat. - Former series regular stars Elise Gatien and Alaina Huffman will reprise their roles of 'Mia Dearden/Speedy' and 'Dinah Lance/Black Canary.' - Tony Goldwyn ('Scandal') has been cast as Bernell Jones, a reporter in Star City and father of Cissie King-Jones, who will cross paths with Chloe (Allison Mack) in the present day storyine taking place in Gotham.
Episode #5-07: "Guidance" Written by: Jack Malone Produced by: The VPN
UPDATED 21/10/2019 - Episode title posted.
UPDATED 1/10/2019 - Episode title to be announced. - DC Comics' Black Spider (Ian Anthony Dale) will be a prominent threat in this episode. - A significant event from Kate's (Deborah Ann Woll) past will be touched upon. While producers have said that a future episode will completely "flesh out" this pivotal moment in the character's past, "[episode 7] will reveal the very thing that's changed her life and the direction of her life." - Chloe (Allison Mack) crosses paths with an old foe intent on helping her in a very difficult situation that involves The Penguin (Toby Jones). - A flashback story recounts a tragic event that took place a day earlier. "This is the first, and probably only time, where our flashback story is so recent," series creator Jack Malone revealed, "But it works because one of our characters is grieving from an event that we slowly peel the layers back from through these flashbacks to reveal what they've lost and why it's so monumental." - Three former series regular stars will make an appearance in this episode. - Veronica (Jeri Ryan) has a game-changing request for Lucius (Charles Michael Davis).
Episode #5-08: "Dome" Written by: Jack Malone Produced by: The VPN
UPDATED 21/10/2019 - Episode title posted. - A flashback story will recount the ramifications of Bruce's (Christian Bale) idea to expand the Gotham State Penitentiary into parts of the city via the use of a dome to combat the growing crime rates and number of incarcerations in Gotham.