The Reacher universe just continues to expand. Available to stream on Prime Video, the TV show based on the books of author Lee Childs follows military veteran Jack Reacher.

The popular titular character is known for his no-nonsense attitude, lone-wolf persona, and commitment to fighting injustices. Reacher never stays in one place for a very long time. However, across different US cities, he finds himself working against all sorts of corrupt forces.

Reacher, by all accounts, has been a massive success. With season three currently in production, fans recently learned about the greenlighting of a spinoff show, Neagley.

On the heels of this announcement, Prime Video also renewed Reacher for a fourth season, even with season three set to release next year.

What to know about Reacher season 4

Prime Video numbers don't lie. While season one of the show was an epic hit, season two's release surpassed previous audience levels within just three days. It's safe to say that fans are taken with the adventures of Reacher, his personal life, backstory, and more.

Central to the show's success is the character portrayal by Alan Ritchson. Over the years, Ritchson's physique and acting chops have been praised as on point for capturing Reacher's intense demeanor.

On Instagram this week, the actor announced the show's season four renewal. Thanking both Prime Video and SkyDance, Ritchson then teased fans with a possible reveal of which Lee Childs book season four will follow.

With season three of Reacher currently undergoing production and not set to come out until next year, it's safe to assume season four is several years away. If the show follows previous release patterns, fans who are eagerly awaiting the quadruple season will likely see it during 2027 or 2028.

Limitless potential for the Reacher universe

There are currently 28 Reacher novels from Lee Childs. This means season four could follow any one of them, especially since the show isn't adhering to the books' chronological order. Then, there's the potential for crossovers between Reacher and new spinoff show Neagley.

As of right now, fans will have to stay tuned and wait for the showrunners to share new updates.