Bruce Lee writes, directs and stars in this martial arts action comedy. Tang Lung (Lee) arrives in Rome to protect a family friend's restaurant from a powerful crime boss who wants to take it over. A violent altercation between Tang and the gangsters sees the boss first try to have Tang assassinated and then, when that fails, request reinforcements.

Tang must now engage Colt (Chuck Norris), a skilled martial artist, in a fight to the death within the walls of the Colosseum...