Trama
Three Kryptonian villains escape the Phantom Zone and expose Superman to Red Kryptonite, causing him to age rapidly. The other Super Friends are captured, and the Justice League computer determines that Blue Kryptonite may reverse the effect. Though deadly to Bizarro, it could save Superman. He pilots the Supermobile to the remains of Krypton to retrieve it, then uses a stolen ray device to send the villains back to the Phantom Zone.