Transmission won't engage at all

What is your question?

We just got a big snow storm and my girlfriend was driving the 4 runner-- she tried to put it into 4 wheel drive---and basically the truck is stuck in neutral. It grinds when I try to get the secondary shifter into 2 wheel drive or 4 high. the X on the dash is lit up indicating that it is in 4 wheel drive--but it as I said--it is really in constant neutral.