Andromeda will die within a day unless Brainiac 5 can develop a serum to counter her lead poisoning. Plus, the Legion's partnership with the United Planets begins to disintegrate when one Legionnaire is unmasked as a traitor.
Brainiac 5 works on a cure for Andromeda's lead poisoning while she reconsiders her racist views, and Shrinking Violet makes a startling discovery.
— Description from Comic Vine community (comicvine.gamespot.com).