Part 2/8:
The film opens with the Avengers launching a military operation against a Hydra base to retrieve Loki's scepter. As the team approaches the fortress, Iron Man attempts to infiltrate through a window, only to be thwarted by a protective energy barrier. Captain America quickly engages in strategizing and has JARVIS scan the area to identify the shield's source. Inside, the villain Baron Strucker realizes he cannot defeat the heroes and decides to surrender, but not before the introduction of the mutant twins, Pietro and Wanda Maximoff, who directly engage in battle.