While a second Stark Industries missile flew in, it never went off as Wanda unknowingly cast a probability hex that turned it into a dud, though the twins lived in fear of it going off until they were rescued. Years later, as young adults, Wanda and Pietro volunteered for Hydra's enhancement program overseen by Baron Wolfgang von Strucker. The organization exposed the twins and numerous other test subjects to the Mind Stone, with Wanda and Pietro being the only survivors and the former gaining psychic abilities while her magic was greatly amplified.