Ean has a critical missionto return to the future to save everyone. However, she becomes trapped in the distant past while trying to prevent the escape of alien prisoners who are locked upin the bodies of humans. Meanwhile, Muruk, who helps Ean escape various predicaments, is unnerved when he begins sensing the presence of a strange being in his body. Traveling through the centuries, they are trying to prevent the explosion of the haava.
You can now watch Alienoid: Return to the Future online on the following streaming providers in the United States.
| Directing | Choi Dong-hoon | Director |
| Writing | Choi Dong-hoon | Writer |
| Writing | Lee Ki-cheol | Writer |
| Production | Ahn Soo-hyun | Executive Producer |
| Camera | Kim Tae-kyeong | Director of Photography |
| Lighting | Hong Seung-chul | Lighting Director |
| Sound | Jang Young-gyu | Original Music Composer |
| Art | Ryu Seong-hie | Production Design |
| Art | Lee Ha-jun | Production Design |
| Costume & Make-Up | Cho Sang-kyung | Costume Design |
| Crew | Yoo Sang-seob | Martial Arts Choreographer |
| Crew | Ryu Seong-cheol | Martial Arts Choreographer |
| Editing | Shin Min-kyung | Editor |
