Back. Isn't that a coincidence! I was just at lunch myself.
MCCOY: Jim, what if we can't go back? What do we do, sit up here and wait for our supplies to run out, our power to die? It has to eventually, you know. We certainly can't go back to Earth. It would be worse than the Captain being returned. There are four hundred and thirty of us, and that means four hundred and thirty chances of altering the future.