Magical time travel game, possibly using MtA 2nd edition
I guess my idea would be somewhat similar to the old show sliders or the old movie Time Bandits, with the group being half forced from time to time, trying to find a way home or to find who is responsible. I am not sure how much more of my idea I could explain without ruining some of the surprise of the story. But I'd welcome any ideas, suggestions, or criticism.