Jaguara cannot work New Thundera’s Gyro on her own. The Thundercats order a robot to aid her in running the Gyro. Screw Loose, a robot who specializes in Gyro’s, comes to New Thundera. Mumm-Ra manages to mess up Screw Looses brain so he becomes destructive instead of helpful. The Thundercats must help Jagara get Screw Loose under control, before the entire planet is destroyed.
