Avengers: Infinity War II

(Thor's spaceship was seized by Thanos, who was collecting the Infinity Stones; one of them happened to be on that very ship, along with Loki, who was obviously shackled in chains after being captured again and prepared for transport back to Asgard... Thanos's guards killed almost everyone on board except for Thor and Loki, as they were the only ones who knew the location of the next Infinity Stone. However, a servant had shackled Thor so that he wouldn't interfere... Loki, seizing the moment, freed himself from his bonds but did not flee for one reason: he couldn't lose his brother... So, he decided to play along with Thanos, knowing that the Titan didn't know who he was and would therefore believe every word he said... Loki quietly took the next Infinity Stone from another room and hid it, using his magic to create a convincing duplicate that was indistinguishable from the original.... At that moment, he was caught by Thanos's guards, who hadn't seen the whole process, only that he was standing by the Infinity Stone as if he were about to take it. He was then brought before Thanos, who wore the Infinity Gauntlet on one hand, already containing one of the stones)