‘Stuart Fails to Save the Universe’ Episode 5 Release Date and Air Time

Fans of the ‘Big Bang Theory’ spinoff have a date to mark on their calendars. Episode 5 of ‘Stuart Fails to Save the Universe’ is scheduled to premiere on August 20, 2026. This release keeps the show on track with its weekly rollout since its debut, indicating that Stuart Bloom’s chaotic multiversal road trip is just beginning.

The series kicked off on Thursday, July 23, on HBO Max, with new episodes airing every Thursday leading up to the season finale on September 24. The core concept has remained consistent from the first episode, following a hapless comic shop owner who inadvertently disrupts reality, with each new installment digging the character into an even deeper predicament.

New episodes are released every Thursday at 6 PM PT, which is 9 PM ET, continuing this pattern until September 24, 2026. Following episode 5 on August 20, viewers can look forward to episode 6 on August 27, episode 7 on September 3, episode 8 on September 10, episode 9 on September 17, and the season finale on September 24.

The first season consists of 10 episodes, each approximately 30 minutes long, and the show is currently available on HBO Max in the United States. This brisk runtime suits a series that revolves around jumping between wildly different alternate realities each week.

The series has already released its fourth episode on August 13, 2026. With episode 5 on the horizon, the show maintains a steady pace that should carry it comfortably to its scheduled finale.

As for the future beyond season 1, HBO Max has yet to officially renew ‘Stuart Fails to Save the Universe’ for a second season, with any decision likely depending on audience reception once the season concludes.

The narrative picks up years after the conclusion of ‘The Big Bang Theory,’ with Stuart still managing his comic book store and dating his girlfriend Denise, until he accidentally damages a device left by Sheldon and Leonard. This mishap tears open the fabric of reality, sending Stuart tumbling into alternate universes he never intended to visit.

Stuart is accompanied on this journey by Denise, his geologist friend Bert, and physicist Barry Kripke. Together, they must navigate various versions of their familiar world while trying to avert total multiversal collapse. Along the way, they encounter alternate versions of beloved ‘Big Bang Theory’ characters, and true to the show’s title, their attempts to fix things rarely go as planned.

Each episode introduces a brand new reality, allowing the writers to parody everything from sci-fi blockbusters to post-apocalyptic dramas and classic comic book themes. This structure contributes to the season’s unpredictability, as viewers are left guessing what genre Stuart will encounter next.

According to co-creator Bill Prady, the show intentionally begins in an off-kilter manner, revealing that the story starts in the wrong universe with instructions on how to set things right, and that fixing the timeline is the central mission driving the season.

Kevin Sussman reprises his role as Stuart Bloom, joined by Lauren Lapkus as Denise, Brian Posehn as Bert Kibbler, and John Ross Bowie returning as Barry Kripke. Bowie’s return was confirmed back in February 2025, alongside a talent holding deal with Warner Bros. Television, while Ryan Cartwright, Josh Brener, and Tommy Walker joined later that year as recurring guest stars.

The series was officially titled in March 2025, and HBO Max granted it a full series order that July, with filming taking place from September 2025 through February 2026. This timeline provided the production ample opportunity to create the various alternate-universe sets that the show relies on each week.

‘Stuart Fails to Save the Universe’ is currently streaming exclusively on HBO Max, with subscription plans starting at $10.99 with ads and $18.49 for the ad-free tier. This places the spinoff behind the same paywall as its predecessor and the broader ‘Big Bang Theory’ extended universe.

Despite its multiverse-hopping premise, star Kevin Sussman has emphasized that this isn’t merely a rehash of the original sitcom. He has indicated that fans should not expect more of the same, positioning the spinoff as a distinctly different show focused on action and science fiction elements rather than the traditional couch-centered comedy of the flagship series.

Series co-creator Chuck Lorre described the show in February 2026 as a science fiction action adventure comedy, expressing his desire for a project that pushed him into unfamiliar territory, particularly regarding visual effects and computer graphics, as most of his career has revolved around two characters conversing on a couch. This represents a significant shift for a producer known for traditional multi-camera sitcoms.

The show’s central premise, which follows Stuart, Denise, Bert, and Kripke as they navigate one broken reality after another, allows the writers to incorporate larger set pieces than the original series ever attempted. It’s a gamble, but one that seems designed to justify the transition to HBO Max’s larger production budget.

With episode 5 set to arrive on August 20 and the finale scheduled for September 24, the season is now more than halfway through its run, and the stakes for Stuart’s universe-saving mission only appear to escalate from here. What alternate reality do you think Stuart and the gang will encounter next, and does the multiverse stand a chance of surviving Kripke’s involvement?