Majin Bone Season 1 Episode 31 Aid from Space

After barely escaping Nepos and returning to Earth with their lives, Shougo and friends are met by Anna, who just happens to have been dispatched to the Los Angeles laboratory. While Higashio and Ian rebuke him, Luke files a report about their safe return. But since their cocoon was destroyed by Wyvern/Klude's transformation into a Rare Metal Bone, the others need to remain inside the laboratory, which is protected by a barrier.