Deneb IV

Deneb IV is a planet.

Marvel The Transformers comics
Kup almost lost his entire platoon on Deneb IV when Decepticons attacked them with a surprise acid shower.

This experience has taught him to be wariest when a mission seems to be "in the bag".

Animated cartoon continuity
Deneb IV is robotic planet, inhabited by Autobots as part of the Autobot Commonwealth. It's known for its nasty stalkers.