Showcase Presents: Legion of Super-Heroes #4
In "Mordru the Merciless!", the Legion of Super-Heroes faces their most dangerous foe yet when Shadow Lass inadvertently unleashes the tyrannical Mordru. With the Legionnaires fleeing to Superboy’s time for safety, they must confront their fear and hesitation when a gangster threat emerges in Smallville—forcing them to rally the townspeople and reconsider their resolve. Written by James Shooter and illustrated by a legendary trio of Curt Swan, Jim Shooter, and Neal Adams (with cover art by Curt Swan, Carmine Infantino, and Neal Adams), this 2010 Showcase Presents issue delivers a gripping tale of courage and consequence.
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When Shadow Lass accidentally releases Mordru, four Legionnaires flee to Superboy's time to hide from him. Mordru tries to find the Legionnaires in Smallville, but they refuse to expose themselves. When a group of gangsters tries to take over Smallville, and the Legionnaires encourage the townspeople to defend themselves, the Legionnaires realize they need to return to the future to face Mordru. But as they prepare to time travel, Mordru finds them.
Plot details indexed by the Grand Comics Database (CC BY-SA).