For this one, I would lead a team to a point in an alternate reality, during the WW2 period, to alter a point in history. The point that I know best is Operation Market Garden, appear in Arnhem with a cache of weapons to help the British airbourne to hold off the Panzer forces long enough for 30th corps to reach the town. Or since its an alternate reality, perhaps its the 101st airbourne whos there, and we appear to help them. I would appear with about 9 others, all current or ex military.
If this idea doesnt interest you, I have other ideas, ones based on the tv series Fringe, the movie red Dawn, if they work better for you.
Alternatively, I could be a US air force pilot, somehow transported to WW2 europe, are captured by German forces in France, and have to resist the methods used to get information. I wouldnt want anything too violent, something tastefull, perhaps my interrogator is part of the July 20 plot, and works to escape with me.