Alex is een verlegen 13-jarige tiener. Tijdens een familiebezoek in Mexico krijgt de knaap een onwaarschijnlijke metgezel als hij een jonge chupacabra ontdekt die zich in de schuur van zijn opa verstopt. Om het mythische wezen te redden, moeten Alex en zijn neven het avontuur van hun leven aangaan.
| Crew | Ed Duran | Stunts |
| Editing | Dan Zimmerman | Editor |
| Production | Mark Radcliffe | Producer |
| Production | G. Mac Brown | Executive Producer |
| Production | Carla Hool | Casting |
| Art | Chris Craine | Supervising Art Director |
| Production | Brendan Bellomo | Executive Producer |
| Art | Peter Wenham | Production Design |
| Production | Michael Barnathan | Producer |
| Writing | Brendan Bellomo | Story |
| Production | Anna Barnathan | Executive Producer |
| Camera | Nico Aguilar | Director of Photography |
| Art | Jorge Barba | Set Decoration |
| Art | Jessica Clark | Set Decoration |
| Costume & Make-Up | Mariana Guerrero Dingler | Costume Design |
| Art | Beauchamp Fontaine | Set Decoration |
| Costume & Make-Up | Tiffany Bloom | Key Hair Stylist |
| Art | Lorus Allen | Set Dresser |
| Writing | Sean Kennedy Moore | Story |
| Writing | Joe Barnathan | Story |
| Writing | Sean Kennedy Moore | Screenplay |
| Writing | Joe Barnathan | Screenplay |
| Writing | Marcus Rinehart | Screenplay |
| Writing | Marcus Rinehart | Story |
| Directing | Brooke Satrazemis | Script Supervisor |
| Sound | Anthony Ortiz | Sound Mixer |
| Sound | Matthew Kay | Foley Mixer |
| Sound | Jay Peck | Foley Artist |
| Sound | Wyatt Sprague | Sound Effects Editor |
| Crew | Kelli Barksdale | Stunt Double |
| Directing | Jonás Cuarón | Director |
| Production | Chris Columbus | Producer |
