Jonathan Cross, a lover of extreme sports, is recruited by Alexi Petrovich to star in his sportive invention, Rollerball. Jonathan accepts and learns the ropes of Rollerball: The players are on Rollerblades, trying to bring a heavy metal ball into a high goal. Also, there are motorcyclists around to bring momentum to the players. Oh yes, and there are no rules in the game. During his skyrocketing career, Jonathan has to experience what Alexi has found out: Blood brings more viewing pleasure to the audience. So, Alexi starts to bribe members of the different teams to cause more trouble than necessary on the field, and the viewers love it. Only a little later, Jonathan's life is already in extreme danger as well as those of his friends and teammates. In a final game, Jonathan and his team have to fight for mere survival against their real opponent - their boss Alexi Petrovich.