The movie is set in the year 2020, where there are Robots that are a replacement of human boxers. The Sport of boxing has really advanced and moved to the extreme level. Charlie Kenton, who is a former boxer, but has been washed up and at a title, he has lost his chance when the ring was taken over by the robots. The boxer’s life has changed and now he has nothing.
He is just nothing. All he does now is from the scrap metal, piecing the low end bolts together to move underground from one boxing venue to the other. He then forms a team with his son, Max. He builds him up and trains him for a companionship contender. As the stakes in the brutal, the two of them need to fight against all the odds to give their last shot to prove themselves as boxers at the comeback.