X-O Manowar is a superhero in the Valiant Universe. He is Aric of Dacia, a 5th Century Visigoth warrior who was abducted by a race of aliens called Spider Aliens in Valiant Comics and The Vine in Valiant Entertainment, respectively, who are attempting to wage war on planet Earth. Aric manages to escape by stealing their most powerful weapon, the X-O Manowar Armor of the name Shanhara, and returns to Earth. However, due to the nature of space-travel he finds that over 1,600 years have passed and everyone he knows is gone. He now has to adjust to the modern world and to the sentient armor's abilities and knowledge.