Her next assignment was to apprehend Loki, the Asgardian responsible for both the theft of the Tesseract and the corruption of Agent Barton. The mission was successful, although it took the combined skills of Steve Rogers, Tony Stark in his Iron Man armor, and Natasha herself at the gun controls of a S.H.I.E.L.D. jet, to subdue him. On the return trip they also encountered Loki's brother Thor, who had designs on Loki's capture of his own.