Hellboy: The Board Game - In Mexico is an expansion that adds gameplay elements from the "Hellboy in Mexico" storyline to Hellboy: The Board Game. This expansion consists of:

4 hero miniatures (Luchador Hellboy & 3 Luchadors)
1 boss miniature (Camazotz)
15 minion miniatures (5 types)
4 agent cards
Case file deck
Encounter deck
Requisition deck
Deck of doom!
Enemy deck
Game tiles