Stargate has become a high-profile likely casualty of the regime change at Amazon MGM Studios. The reboot of the popular MGM IP from Stargate veteran Martin Gero, which received a series order by Prime Video in November 2025, will not be going forward, Deadline has confirmed.

The decision to pull the plug is made late in the process — I hear the show had completed a 20-week writers room and was in pre-production in the UK. It was explained with the new series’ vision and creative direction, which allegedly no longer aligned with Amazon’s programming strategy.

The differences apparently ran so deep, they required an outright cancellation vs. retooling the existing version of the project by giving notes to Gero, a veteran showrunner who had been signed into an overall deal by Amazon MGM Studios for the purpose of him spearheading Stargate.

Ironically, the new Stargate was greenlighted by Amazon MGM Studios Head of Television Peter Friedlander in one of his first pickup decisions after he joined the streamer in early October. But the series falls under the purview of one of Friedlander’s top lieutenants, Brett Fetter, Head of Worldbuilding & Genre Series, who didn’t start at Amazon until February.

The two executives who had developed Stargate with Gero and had championed it, Nick Pepper, formerly Head of US SVOD TV Development and Series – Wholly Owned, and Matt King, formerly Head of Tentpole, Genre and Universe Development, Wholly Owned, are both gone — with the former leaving when Fetter joined the company and the latter departing two months later when Fetter restructured his team.

Stargate was among the first MGM titles identified for series or film adaptations following Amazon’s $8.5B acquisition of the storied Hollywood studio in 2022. The studio may revisit the IP with another showrunner, possibly someone who does not have history with it and would give it a fresh new perspective, I hear.

Meanwhile, Gero, who had worked on three previous Stargate series and created NBC’s Blindspot, will focus on developing new projects under his overall deal at Amazon MGM Studios.

Stargate is a military sci-fi franchise that centers on the Stargate, an ancient ring-shaped device that creates a stable wormhole, enabling near-instantaneous travel across the cosmos.

Originally launched with Roland Emmerich’s 1994 feature film Stargate, the franchise has expanded over three decades to include multiple television series including Stargate SG-1 (1997-2007), Stargate Atlantis (2004-2009), and Stargate Universe (2009-2011). Other series include the animated Stargate Infinity (2002-2003) and web series Stargate Origins (2018).

Gero served as creator, writer and executive producer on the reboot. Executive producers also included Joby Harold and Tory Tunnell for Safehouse Pictures as well as Dean Devlin and Emmerich, the duo behind the 1994 Stargate movie. Brad Wright and Joe Mallozzi, longtime creative leaders within the Stargate TV universe, served as consulting producers. 

The news of Stargate‘s demise was first reported by Variety.