colossus be a super computer create by dr. charles forbin and his team and design to protect the united state . colossus one day announce that it have find another system call guardian and a super computer create by the u. s. s. r. for the same purpose . colossus and guardian link up and after much communication and exchange of data they reach a common ground and with a common language ( know only to these two computer ) and hold the world hostage . sound scary . yes and it be and a bit . because of security reason and the link between guardian and colossus be break and after much discussion between the u. s. and the u. s. s. r. and and colossus get uppity and launch missile at the soviet union and a do guardian at the u. s. the missile head for the u. s. be intercept but not the one bound for the soviet union and and a town and an oil field be destroy but it all cover up in the medium . of course there much alarm between these two country that they now have these two seemingly out of control computer call the shot and and meeting be hold to decide what to do . dr. forbin himself be more or less hold hostage by colossus and and try to work around it by put dummy warhead in missile silo and overload the computer with task and but ala and nothing seem to get by this super monster . this be some fairly chilling science fiction and and some decent cold war scare and a thing seem to be get just a bit out of hand . not a happy end to this one either and which make it all the more chilling . a decent film for science fiction and cold war movie fan . lot of familiar face too ( marion ross and william schallert ) although at the time it wasn not exactly a big name cast . positive .