The Red Witch is worried: her husband, Vision, is not giving news. Moreover, the West Coast Avengers headquarters is the target of a surprise attack by the evil robot Ultron. But the offensive was only a lure and Hank Pym suspected that a traitor had provided the enemy with the information necessary for it... Contains the US episodes: West Coast Avengers (1985) 42-50, previously published in WEST COAST AVENGERS: THE INTEGRAL 1989