Pietro Maximoff a.k.a Quicksilver was one of the twins who volunteered to take part in Baron von Strucker's experiments involving the Scepter. Pietro, who survived the experiments, received the power of super-speed.
Pietro was one of the people in Sokovia protesting against their government. They were approached by Baron Strucker who promised to grant powers similar to that of the Avengers to aid them in their fight. Pietro and his twin sister, Wanda were the only ones who survived the experiments involving the Scepter. Pietro gained the power of super-speed with improved metabolism and homeostasis while Wanda became capable of warping reality.