Although they were the primary threat in the Season 3 finale, this episode establishes them as the ultimate "ticking clock" the heroes must outrun in the past. Production and Reception Original Airdate: October 25, 2015.
Fans noted the "cinematic feel" and the shift toward more traditional sci-fi tropes, including space battles and diverse alien landscapes. Beyond the Known Universe | TMNT Wiki | Fandom [S4E1] Beyond the Known Universe
The episode is featured on the DVD and home video releases titled " Beyond the Known Universe ". Although they were the primary threat in the
A robotic scientist who saves the team and provides the technology for time travel and interstellar flight. [S4E1] Beyond the Known Universe
The episode marks the debut of the Insectoids , as well as several minor characters like Valaxina and Chupo.