Behind The Crooked Cross is an adventure series loosely using the "Primetime Adventures" rule set, based on the exploits of a team of soldiers and misfits requisitioned from the British Army for "Special Assignments" beginning in 1940. The game was conceived to be run by Jon and Matt jointly, each taking a turn at being Storyteller and letting the other play a supporting character for the night. Both GMs have an overview of the general story arc but the detail of each episode is down to the GM for that night.