During a stroll in the park with Nino and his mother, Rex manages to save the life of the eccentric inventor and dotcom wiz, Alex (Judd Nelson).

Rex is badly injured during his act of heroism and Alex, as a gesture of gratitude, takes the dog back to his bionics lab to rebuild him.

Through cutting edge gadgetry, Rex is imbued with super powers and becomes the target of villains determined to possess the new technology at any cost.

After the procedure, Rex is capable of feats of great strength, can see in infrared vision and run at 70 mph.

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