Prime Video released the official trailer for Reacher Season 4 and a teaser for a new spin-off series, Neagley, at San Diego Comic-Con.

The announcements signal a major expansion of the franchise, moving beyond the central protagonist to build a shared cinematic universe. By introducing a dedicated series for Neagley, the studio is leveraging a fan-favorite supporting character to maintain momentum between main seasons.

The fourth season is scheduled to premiere on Wednesday, Aug. 12, 2026 [1]. Prime Video will release three episodes on the premiere date, followed by weekly installments through Sept. 16, 2026 [1]. The trailer debuted during the convention on July 25 [2].

This upcoming season adapts "Gone Tomorrow," which is Lee Child's 13th novel in the series [3]. Alan Ritchson returns as Jack Reacher, starring alongside a cast that includes Sydelle Noel, Chris Marquette, AGNEZ MO, Anggun, Kevin Weisman, Marc Blucas, Kevin Corrigan, and Kathleen Robertson [4].

While the primary focus remains on Reacher, the surprise announcement of the Neagley spin-off suggests a strategic shift in how Prime Video manages its intellectual property. The teaser provided a first look at the project, though specific plot details for the spin-off were not detailed in the initial reveal.

The series will continue to stream exclusively on Prime Video, following the high-profile presentation in San Diego, California [4].

“Season 4 premieres on Wednesday, Aug. 12, 2026”

The expansion into a spin-off series indicates that Prime Video views the Reacher brand as a cornerstone of its original programming. By diversifying the narrative focus to include Neagley, the network can explore different genres of suspense and investigation while mitigating the risk of 'protagonist fatigue' associated with a single lead character.