I can give you the rundown, but I'll warn you now, it's only going to make this make less sense.

We've been kidnapped. They have some kind of interdimensional teleporter -- it can take anyone from any time or place. The government here is conscripting the people they bring in to fight crime.

[And here's the part he really doesn't know how to tell her about:]

Carolina --

The other Freelancers are here.