The past is catching up with a trio of Legionnaires as Mon-El and Magnetic Kid journey back to their home worlds…and Blok forms a mysterious alliance with his old companions from the League of Super-Assassins.

Brainiac 5's sudden departure from the team leaves the Legion of Super-Heroes shocked and reeling. Lightning Lass, Magnetic Kid and Tellus are on the planet of Braal when they uncover a criminal's plan of attack, causing unnatural earthquakes to occur on the planet. They soon learn it's a Gil'Dishpan and take care of him. Meanwhile, Shadow Lass brings Mon-El to a medical facility to help him recover from the brutal beating he received from the Time Trapper.