ÒBAD IDEAS.Ó An ancient legacy catches up with Brainiac 5 when he learns the terrible secret of his great-great-grandfather, Brainiac 1...one of SupermanÕs greatest enemies! To make it up to him, Brainy takes Superman on a trip to KryptonÕs past, but an unexpected detour to the Phantom Zone could mean disaster for the LegionÕs future!