As per Variety, the official synopsis for the show states: “Comic book store owner Stuart Bloom (Sussman) is tasked with restoring reality after he breaks a device built by Sheldon and Leonard, accidentally bringing about a multiverse armageddon.

HBO Max is making a Big Bang Theory spinoff series, so get ready for more nerds in a sitcom setting. The streamer ordered a season of Stuart Fails to Save the Universe, which will be executive produced by the Big Bang creators.

CBS' The Big Bang Theory ended in 2019, spawning two hit spin-offs, and now a third which is happening on HBO 's Max streaming service.

Four supporting cast members from The Big Bang Theory are carrying over to Stuart Fails to Save the Universe. They are Kevin Sussman 's titular Stuart, John Ross Bowie as Barry Kripke, Brian Posehn as Bert Kibbler, and Lauren Lapkus as Stuart's girlfriend Denise.