A strange comet splits the sky, all the TV channels, from Gotham to Metropolis, have their eyes on her. Fortunately, Superman, Batman and Robin intercept her before she crashes! This is actually a ship that houses a young man named Boy Thunder. Black Knight and Steel Man soon take him under their wing. But the news is fast and, conscious of the potential of this budding hero, the Joker and The Key will take advantage of his candour to try to rally him to their camp