Season 1, Episode 14
Air date October 15, 2010
Written by Andrew Robinson
Directed by Rick Morales
Episode guide
"The Hunter"
"What Lies Beneath"
Images | Quotes | Transcript

"Gravity" is the 14th episode of season one of Generator Rex and the 14th of the overall series. It debuted on October 15, 2010.


Zag RS returns in its latest attempt to destroy all nanites. It invades a Providence satellite containing Dr. Holiday and others on board. When they shut it down to prevent Zag RS from escaping, the satellite begins falling towards Earth. It's up to Rex to prevent the satellite from burning up in the atmosphere and to stop Zag RS.


Dr. Holiday and a small group of Providence scientists are on board a space station working on a modified form of nanites that deactivate regular nanites. They nearly succeed but the nanites self-destruct. Just when they are about to restart the test, Zag RS hacks into the satellite to steal the deactivated nanite research which, in its current state, will go a long way towards her goal of annihilating every nanite on the planet, and all life with it.

Dr. Holiday manages to shut down the station's systems, thus preventing Zag RS from downloading into another system and trapping Zag RS.. However, the scientist who is with her is sucked out into space. The other terrified scientist, Bouvier, jettisons himself in an escape pod, which collides with one of the satellite's solar panels, thus throwing the station into an orbital decay. Now it is only Dr. Holiday and the last remaining scientist, Pete Volkov, trapped inside the space station without power.

Rex arrives to help using the space elevator but the strain put on it destroys it.

With the assistance of a drone named Salvator, Rex is able to stabilize the station so that an escape pod with Rex, the surviving crew and the nanites on board can reach Earth. However, it is eventually revealed that Zag RS downloaded itself into Salvator to avoid the effect of the shut down and now intends to leave everyone else on the satellite while she escapes to Earth in Salvator with the nanites and the research.

Rex and Dr. Holiday are able to defeat Zag RS by both destabilizing the station and sacrificing the nanites. The episode ends with Dr. Holiday, Rex and Volkov survived with an escape pod in the middle of the ocean awaiting pickup.


(† indicates deceased)

Voice Actor Role(s)
Daryl Sabara Rex Salazar
Wally Kurth Agent Six
John DiMaggio Bobo Haha
Pete Volkov (debut)
J. K. Simmons White Knight
Grey DeLisle Rebecca Holiday
Zag RS
Doctor Rhodes (debut)
Rob Paulsen Bouvier(debut)
Comm Tech (debut)


  • Interestingly, in 2013, a film named Gravity was released where two scientists are stranded in space after mid orbit destruction of their space shuttle and struggle to return to Earth. This mirrors Dr. Holiday and Pete Volkov's situation where they are stuck in space after Zag RS takes control of the shuttle.
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