The Case of the Shrinking Superfriends

The older members of the Super Friends, including Batman and Superman, are called away to outer space, to stop the destruction of a distant inhabited world. In the meantime, back on Earth, Robin, Firestorm and the Wonder Twins, together with the Hall of Justice itself, are shrunk down in size by Luthor's new ray. The young heroes must work together in order to free themselves from Luthor, and restore everything back to normal size.