This is a 9 card set.
A Mexican revolutionary has been captured by the sadistic Colonel Diego (Michael Ansara) and young Max (Reni Santoni), remembering tales of Chris (George Kennedy) seeks out the gunfighter to help once more. This is not a fight but a rescue mission and Chris needs men with specialist skills. 
The story of each character is shown on the reverse of each card.
A 54 card storyboard set is also available.