There will be no ninth season for Emmy-winning series Regular Show. Cartoon Network said the series’ eighth season, set to debut on September 26, will be its last.

Regular Show, from creator and executive producer JG Quintel, has followed the lives of best friends and groundskeepers Mordecai (voiced by Quintel) and Rigby (William Salyers) whose lazy afternoon escapades are interrupted by misadventures with their gang of friends. Season eight will present the ultimate intergalactic battle of good versus evil as Mordecai and Rigby are joined by Pops, Benson, Muscle Man (all voiced by Sam Marin) and Skips (Mark Hamill).

“From JG’s original pitch on post-it notes, through eight successful seasons and more than 250 episodes produced, Regular Show has been one of the most original animated series of this generation creating indelible characters and signature comedy mayhem laced with heart,” said Cartoon Network chief content officer Rob Sorcher. “Our sincere thanks to this talented crew and cast for their incredible dedication, and I’m proud that they all agreed to go up in space together for one hilarious final journey.”

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“Making Regular Show has been so much fun, added Quintel. “We got to tell all of the stories we wanted to tell, and making the choice to go out exactly how we want to go out. We’re so proud and excited for people to see how we’re wrapping things up in a big, big way. We’re bringing everything full circle.”

Regular Show began as a project by Quintel during his time as a student at CalArts, and was the first series to be greenlit from Cartoon Network Studio’s award-winning Artists Program in 2008. One of the studio’s longest-running series, Regular Show won a Primetime Emmy Award for Outstanding Short-Format Animated Program in 2012 for “Eggscellent,” and has been nominated for five Emmys since its debut. The series also spawned a feature-length film, Regular Show: The Movie, which premiered on Cartoon Network in 2015.

Here’s a clip from Season 8’s premiere episode.