Avengers: Hero Assembly Concluded (1)

Violent energy fluctuations erupted. When Loki stepped through the threshold with a wicked smile, he had arrived on Earth from the distant stars. "You are even more foolish than I imagined, Earthlings." Loki's disdainful gaze swept over every S.H.I.E.L.D. agent present. Behind him, the passage opened by the cubes slowly closed. In that instant, S.H.I.E.L.D.'s cubes had gone out of control and brought Loki to Earth. "Has the Cube closed?" Coulson asked the researchers angrily, his expression grave.