After thwarting a plot by the government of Arga-Prime to wipe out the alien races on their world, the L.E.G.I.O.N. discovers that the ruling high council would rather die than succumb to outside pressure and releases a virulent virus into the atmosphere to destroy all life.
Chaos rules on the planet Arga-Prime, as the end of the world is nigh, and Vril Dox drives himself into a frenzy attempting to find a cure for the life-destroying virus released by the planet's high council. And the guy sent to ensure the well-being of the evil council is none other than Lobo!
Trapped in the dreaded Shadow Cave on Talok VIII, Lydea Mallor encounters the most surprising being of all...her dead mother Lyrissa. Now Lydea must choose between her Talokian heritage and the L.E.G.I.O.N., but only if she survives her encounter with the tentacled Shadow Beast!
A bizarre string of unsolved murders on Cairn leaves Vril Dox's secret police baffled. But a mysterious, eight-foot-tall, pink costumed hero known only as the Masked Avenger appears on the scene to help. Who is this masked man? And why does he look so much like Garv, who recently quit the team?
Unfortunately for Superman, Lobo thinks they're pals...and the Main Man's got a strange way of treating his friends. Also, Stealth discovers Dox experimenting on their child, and she's more than a little upset by this! And on the planet Ith'kaa, Captain Comet learns that behind Lady Quark's facade lurks one of his most hated enemies.
On an undercover mission to the planet Nuhass, the L.E.G.I.O.N. is drawn into the belly of a mysterious star cruiser, aboard which the sinister Mr. B subjects Stealth to some horrific experiments. Plus, Vril Dox conducts an official inquiry into the death of Captain Comet, putting Lady Quark on the hot seat.
In a dramatic prelude to ZERO HOUR, titanic changes are taking place. Dox's control begins to slip away as the secrets of Phase's past are finally revealed, when Jo Nah of the Legion of Super-Heroes finds her on Cairn. Plus, Strata resigns and announces her impending marriage to Garv.