The official synopsis for Stuart Fails to Save the Universe proves the spinoff will bring back The Big Bang Theory's characters, but there's a catch.

As the first Big Bang Theory spin-off that isn't a prequel, Stuart Fails to Save the Universe represents a big shift from the other spin-offs, both of which are set well before the events of The Big Bang Theory.

The Big Bang Theory' is gearing up for another spinoff! HBO Max has formally greenlit 'Stuart Fails to Save the Universe,' a comedy that will center on comic book shop owner Stuart Bloom played by Kevin Sussman,