Superboy, Mon-El, Shadow Lass and Duo Damsel are stuck in 20th century Smallville with Mordru out to get them. Only Pete Ross and Lana Lang (as Insect Queen) can help the Legionnaires beat Mordru!
The Legionnaires are sent to stop Dr. Mantis Morlo (he’s the mad & eeeevil type of doctor) from polluting Earth’s atmosphere with his (probably mad and eeeevil) experiments. The Legionnaires better watch out, Dr. Morlo is protected by his Fantastic Hemorrhoids Chemoids!
Intel points to a possible invasion of Earth by unknown forces. This is a time for the Legion to be at full-strength not for four Legionnaires to quit!
The Legionnaires are protecting a shipment of the mineral Rejuvium (which has the amazing ability to de-age a person) when they are attacked by Starfinger. Starfinger can project a different energy ray from each finger on his right hand. Starfinger has one other identifying feature: