From the official CBS site:
One Survivor is alienated from the tribe after an outburst that jeopardizes any chance of being in the Final Four.
Tempers flare when one tribemate refuses to tell another the whereabouts of some buried provisions.
When a tribemate catches two Survivors talking strategy, an altercation erupts that makes everyone realize what's at stake.
Working both sides of a divided camp, one Survivor makes conflicting promises going into Tribal Council. Which way will the tribe member vote? And who will make it to the Final Four?