There's a runaway train from the future supposedly holding a valuable treasure, and it's up to the Loonatics to stop it. When Ophiuchus Sam shows up to rob the train, a mysterious stranger named Deuce appears.
When Duck takes all the credit for catching the Shropshire Slasher, Tech gets annoyed. But when Duck starts to suspect that the Slasher is out for revenge, he's more than willing to let Tech take the glory.
Ace feels like he's being watched, but what he doesn't realize is that he's being hunted! ELECTRO J. FUDD is an intergalactic space hunter who has been hired by OTTO THE ODD to capture the world's greatest action hero.
The Loonatics vacation on a tropical island, only to discover that it's been colonized by a race of beautiful women called the APOCAZONS. QUEEN ATHENA leads these women and invites Lexi to visit their "women-only" temple.
The Loonatics busily track down BUGSY and STONEY, whom they believe have come to Acmetropolis to steal a piece of a meteorite that contains the isotope Curium 247, the only substance that can take away all of their powers.