Golden Years (1991)

When an explosion at a topsecret government lab injures an elderly janitor no one could have expected the terrifying results Exposure to mysterious chemicals causes him to undergo a bizarre transformation He is slowly incredibly growing younger every day Now a ruthless CIA assassin will stop at nothing to take him prisoner and turn him into a government guinea pig With his future on the line the janitor goes on the run with his wife and a feisty female agent All the while he continues to transform into a being with powers that are as deadly as they are unimaginable